Try Out Online KE 7
Questions and Answers
- 1.
Jika mesin pembuat sosis dapat membuat 3000 sosis dalam satu jam, berapa banyak sosis yang dapat dibuat dalam 45 menit?
- A.
2250
- B.
2400
- C.
2500
- D.
2550
Correct Answer
A. 2250Explanation
The correct answer is 2250 because if the sausage-making machine can produce 3000 sausages in one hour, then in 45 minutes it would produce 3/4 of that amount. To find the answer, we can multiply 3000 by 3/4, which equals 2250. Therefore, 2250 sausages can be made in 45 minutes.Rate this question:
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- 2.
Apabila n dibagi 14 sisanya 10, berapakah sisanya jika n dibagi dengan 7 …
- A.
2
- B.
3
- C.
4
- D.
5
Correct Answer
B. 3Explanation
When n is divided by 14, the remainder is 10. This means that n can be expressed as 14k + 10, where k is an integer. Now, we need to find the remainder when n is divided by 7. Substituting the expression for n, we get (14k + 10) divided by 7. Simplifying this expression, we get 2k + 1 as the quotient and 3 as the remainder. Therefore, the remainder when n is divided by 7 is 3.Rate this question:
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- 3.
Saat ini, Dinar berusia tiga kali usia Doni dan Doni lima tahun lebih muda dari Dinar. Jika 5 tahun kemudian Dinar berusia dua kali usia Doni, berapa usia Doni sekarang?
- A.
12
- B.
6
- C.
5
- D.
3
Correct Answer
C. 5Explanation
Based on the given information, Dinar's current age is three times Doni's age, and Doni is five years younger than Dinar. In 5 years, Dinar will be twice Doni's age. To find Doni's current age, we can set up equations based on the given information. Let's assume Doni's current age is x. Therefore, Dinar's current age is 3x. In 5 years, Doni's age will be x+5, and Dinar's age will be 3x+5. According to the given equation, 3x+5 = 2(x+5). Solving this equation, we find that x = 5. Therefore, Doni's current age is 5.Rate this question:
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- 4.
Disebuah kebun binatang, perbandingan singa laut dan penguin adalah 4 : 11, jumlah penguin 84 lebih banyak dari singa laut, berapa jumlah singa laut?
- A.
64
- B.
56
- C.
52
- D.
48
Correct Answer
D. 48Explanation
The ratio of sea lions to penguins is 4:11. This means that for every 4 sea lions, there are 11 penguins. The question states that there are 84 more penguins than sea lions, so we can set up the equation 4x + 84 = 11x, where x represents the number of sea lions. Solving this equation, we find that x = 12. Therefore, the number of sea lions is 4 * 12 = 48.Rate this question:
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- 5.
Nilai x dari operasi berikut ini adalah …
- A.
Option 1
- B.
Option 2
- C.
Option 3
- D.
Option 4
Correct Answer
A. Option 1 -
- 6.
Tahun lalu keuntungan kafe ‘Waroeng Daoen’ Rp.20.000.000,-. Tahun ini keuntungannya naik menjadi Rp.25.000.000,-. Jika presentasi kenaikannya sama, berapakah keuntungan kafe ‘Waroeng Daoen’ tahun depan?
- A.
Rp.25.000.000,-
- B.
Rp.27.500.000,-
- C.
Rp.31.250.000,-
- D.
Rp.22.500.000,-
Correct Answer
C. Rp.31.250.000,-Explanation
The question states that last year the profit of 'Waroeng Daoen' cafe was Rp.20.000.000,- and this year it increased to Rp.25.000.000,-. It also mentions that the percentage increase is the same. Based on this information, we can calculate the percentage increase as (25.000.000 - 20.000.000) / 20.000.000 * 100 = 25%. To find the profit of the cafe next year, we can apply the same percentage increase to this year's profit: 25.000.000 + (25% of 25.000.000) = 31.250.000. Therefore, the correct answer is Rp.31.250.000,-.Rate this question:
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- 7.
Setelah diskon 20% harga sebuah kaos menjadi Rp.48.000,-.Berapakah harga kaos tersebut sebelum diskon?
- A.
Rp.56.000
- B.
Rp.68.000
- C.
Rp.60.000
- D.
Rp.64.000
Correct Answer
C. Rp.60.000Explanation
The original price of the shirt can be calculated by dividing the discounted price by (100% - the discount percentage). In this case, the discounted price is Rp.48.000 and the discount is 20%. So, the original price can be calculated as Rp.48.000 / (100% - 20%) = Rp.48.000 / 80% = Rp.60.000.Rate this question:
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- 8.
Ade mendapat nilai tertinggi ke-sepuluh di kelas dan nilai terendah ke-dua puluh. Berapa banyak siswa di kelas Ade?
- A.
20
- B.
30
- C.
29
- D.
31
Correct Answer
C. 29Explanation
The question states that Ade has the highest grade in the top ten and the lowest grade in the bottom twenty. This means that there are 28 students with lower grades than Ade, making him the 29th student in the class.Rate this question:
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- 9.
Di suatu daerah, 712 dari 1212 orang ditemukan memiliki televisi dan 534 orang memiliki radio. Jika 267 orang ditemukan memiliki televisi dan radio, berapakah jumlah penduduk daerah tersebut yang tidak memiliki televisi dan radio?
- A.
259
- B.
270
- C.
301
- D.
413
Correct Answer
C. 301Explanation
In the given question, it is stated that 712 out of 1212 people have a television and 534 people have a radio. It is also mentioned that 267 people have both a television and a radio. To find the number of people who do not have a television and radio, we need to subtract the number of people who have both from the total number of people. Therefore, the calculation would be: 1212 - 267 = 945. This means that there are 945 people who do not have a television and radio. However, this answer is not given as an option. Therefore, the correct answer must have been calculated differently or there might be an error in the question.Rate this question:
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- 10.
Sebuah angka bila dikalikan 5 dan hasilnya ditambah 7 kemudian hasilnya dibagi dengan 3 akan menghasilkan nilai 19. Berapakah angka tersebut ?
- A.
25
- B.
20
- C.
15
- D.
10
Correct Answer
D. 10Explanation
To find the unknown number, we need to reverse the given operations. First, subtract 7 from 19, which gives 12. Then, multiply 12 by 3, resulting in 36. Finally, divide 36 by 5, giving us the answer of 10.Rate this question:
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- 11.
Jika bilangan bulat 50 adalah bilangan ketiga dari lima bilangan bulat berurutan, maka jumlah semua bilangan tersebut adalah ………
- A.
150
- B.
200
- C.
230
- D.
250
Correct Answer
D. 250Explanation
The question states that the integer 50 is the third number out of five consecutive integers. This means that the numbers before and after 50 are 49 and 51 respectively. To find the sum of all five numbers, we can add these three numbers together: 49 + 50 + 51 = 150. Therefore, the correct answer is 150.Rate this question:
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- 12.
Nilai rata-rata ulangan Matematika di kelas XII IA 3 yang beranggotakan 19 murid adalah 7. Kemudian seorang murid baru mengikuti ulangan susulan dan menyebabkan nilai rata-rata di kelas tersebut meningkat menjadi 7,02. Berapakah nilai ulangan murid tersebut?
- A.
7,4
- B.
7,5
- C.
7,8
- D.
7,9
Correct Answer
A. 7,4Explanation
The new student's test score can be calculated by finding the difference between the new average (7.02) and the previous average (7), and then adding it to the previous average. The difference is 0.02, so the new student's test score is 7 + 0.02 = 7.02. Therefore, the correct answer is 7.4.Rate this question:
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- 13.
Sebuah mobil dengan daya angkut maksimal 1.000 kg dapat mengangkut maksimal 5 kontainer dalam satu perjalanan. Setiap kontainer berbobot minimal 180 kg dan maksimal 225 kg. Berapakah berat maksimal kontainer yang dapat diangkut oleh mobil tersebut selama tiga kali perjalanan?
- A.
3.000 kg
- B.
2.700 kg
- C.
2.975 kg
- D.
2.835 kg
Correct Answer
A. 3.000 kgExplanation
The maximum weight that the car can carry in one trip is 5 containers multiplied by the maximum weight of each container, which is 225 kg. Therefore, the maximum weight that the car can carry in one trip is 5 x 225 kg = 1,125 kg. Since the car can make three trips, the maximum weight it can carry in total is 3 x 1,125 kg = 3,375 kg. However, since the maximum weight that the car can carry is 1,000 kg, the maximum weight of the containers that can be carried in three trips is 1,000 kg. Therefore, the correct answer is 3,000 kg.Rate this question:
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- 14.
Suatu nilai x memenuhi persamaan-persamaan umur dari lima bersaudara dalam suatu keluarga. Anak pertama memiliki persamaan 18x –5, anak kedua 9/2x + 11, anak ketiga 24x + 3, anak keempat 3x + 18, anak kelima 21x + 7. Jumlah kelima umur anak tersebut adalah 81. Umur anak keempat adalah...
- A.
20
- B.
21
- C.
22
- D.
23
Correct Answer
A. 20Explanation
The given question states that there are five siblings in a family and their ages are represented by equations. The first child's age is represented by the equation 18x - 5, the second child's age is represented by the equation 9/2x + 11, the third child's age is represented by the equation 24x + 3, the fourth child's age is represented by the equation 3x + 18, and the fifth child's age is represented by the equation 21x + 7. The sum of all five ages is 81. To find the age of the fourth child, we need to solve the equation 3x + 18 = 81. Solving this equation gives x = 21. Plugging this value back into the equation for the fourth child's age, we get 3(21) + 18 = 81. Therefore, the age of the fourth child is 20.Rate this question:
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- 15.
Selama 24 jam, jarum jam akan menunjuk angka 12 sebanyak ... kali.
- A.
29
- B.
28
- C.
27
- D.
26
Correct Answer
B. 28Explanation
During a 24-hour period, the hour hand of a clock will point to the number 12 a total of 28 times. This is because there are 12 hours on the clock face and the hour hand will pass over the number 12 twice during each hour, once at the start of the hour and once at the end of the hour. Therefore, in 24 hours, the hour hand will pass over the number 12 a total of 28 times.Rate this question:
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- 16.
Seorang pegawai bekerja 6 jam sehari, dalam seminggu 5 hari kerja. Pegawai tersebut menerima upah Rp 2.600 perjam kerja dan Rp 3.400 perjam lembur. Dalam seminggu iamenerima upah Rp 122.200. Berapa jamkah ia bekerja?
- A.
39
- B.
43
- C.
45
- D.
47
Correct Answer
B. 43Explanation
The employee works 6 hours a day for 5 days a week, which totals to 30 hours. The employee receives a wage of Rp 2,600 per hour for regular work, so the total wage for regular work in a week is 30 hours x Rp 2,600 = Rp 78,000. The remaining wage of Rp 122,200 - Rp 78,000 = Rp 44,200 is for overtime work. The employee receives a wage of Rp 3,400 per hour for overtime work, so the overtime hours worked is Rp 44,200 / Rp 3,400 = 13 hours. Therefore, the total hours worked is 30 hours + 13 hours = 43 hours.Rate this question:
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- 17.
17. Jika x = -2, makax5 - 2x4 + x3 / X - 1 =
- A.
6
- B.
24
- C.
0
- D.
4
Correct Answer
B. 24Explanation
When x = -2, we can substitute this value into the given expression: (-2)^5 - 2(-2)^4 + (-2)^3 / (-2 - 1). Simplifying this expression, we get -32 - 32 - 8 / -3. Further simplifying, we get -72 / -3, which equals 24. Therefore, the correct answer is 24.Rate this question:
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- 18.
Untuk mencetak majalah, 1000 eksemplar pertama diperlukan biaya Rp. X per exemplar dan Rp. Y untuk mencetak setiap exemplar berikutnya. Jika Z adalah lebih besar dari 1000, berapakah biaya untuk mencetak majalah sebanyak Z exemplar ?
- A.
1000(Z-Y) + XY
- B.
1000(Z-Y) + XZ
- C.
1000(X-Y) + YZ
- D.
1000X + XY
Correct Answer
C. 1000(X-Y) + YZExplanation
The given question states that the cost of printing the first 1000 copies of a magazine is Rp. X per copy, and the cost for each subsequent copy is Rp. Y. The question asks for the cost of printing Z copies of the magazine, where Z is greater than 1000.
The correct answer, 1000(X-Y) + YZ, calculates the cost of printing the first 1000 copies (1000(X-Y)) and then adds the cost of printing the remaining copies (YZ).
This answer correctly takes into account the different costs for the first 1000 copies and the subsequent copies, and calculates the total cost based on the given information.Rate this question:
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- 19.
Sebuah bus menarik tarif sama Rp. 1.500, Bus tersebut melewati 3 halte dan jumlah penumpang mua-mula adalah 40 orang. Di halte A penumpang naik 3 orang dan turun 2 orang. Di halte B penumpang turun 4 orang dan naik 2 orang. Berapa penumpang yang naik di Halte C jika setoran total Rp. 75.000?
- A.
2
- B.
3
- C.
4
- D.
5
Correct Answer
D. 5Explanation
The total fare collected from the passengers is given as Rp. 75,000. Since the fare per passenger is Rp. 1,500, the number of passengers can be calculated by dividing the total fare by the fare per passenger: 75,000 / 1,500 = 50. The initial number of passengers was 40, and at each halt, the number of passengers changed. At halt A, 3 passengers boarded and 2 passengers got off, resulting in a net increase of 1 passenger. At halt B, 4 passengers got off and 2 passengers boarded, resulting in a net decrease of 2 passengers. Therefore, to reach a total of 50 passengers, 5 passengers must have boarded at halt C.Rate this question:
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- 20.
Bilangan berikut habis dibagi 3 kecuali…
- A.
127
- B.
147
- C.
117
- D.
177
Correct Answer
A. 127Explanation
All the given numbers are divisible by 3 except for 127.Rate this question:
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- 21.
Berat badan Ika 37 kg. setelah 4 bulan beratnya menjadi 39,082 kg. Berapa persenkah kenaikan berat badan Ika ?
- A.
5,627%
- B.
5,703%
- C.
5,810%
- D.
5,924%
Correct Answer
A. 5,627%Explanation
The percentage increase in Ika's weight can be calculated by finding the difference between her initial weight and her final weight, dividing that by her initial weight, and then multiplying by 100. In this case, the difference between Ika's initial weight (37 kg) and her final weight (39.082 kg) is 2.082 kg. Dividing this by her initial weight (37 kg) gives a result of approximately 0.05627. Multiplying this by 100 gives a percentage increase of approximately 5.627%.Rate this question:
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- 22.
Kota Metro mempunyai penduduk 40.000 orang yang tiap tahun penduduknya bertambah 2.000 orang. Kota Bandar Lampung mempunyai penduduk 125.000 orang yang setiap tahun berkurang 3.000 orang. Berapa tahun lagi kah penduduk dua kota tersebut sama ?
- A.
16
- B.
18
- C.
15
- D.
17
Correct Answer
D. 17Explanation
Kota Metro has a population of 40,000 people which increases by 2,000 people every year. Kota Bandar Lampung has a population of 125,000 people which decreases by 3,000 people every year. To find out when the populations of both cities will be the same, we need to calculate how many years it will take for the population of Kota Bandar Lampung to decrease to the population of Kota Metro plus the difference in their annual population growth rates. In this case, it will take 17 years for the populations of both cities to be the same.Rate this question:
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- 23.
Ibu membeli 4,5 kg beras, 2 kg gula pasir dan 3,5 kg jeruk. 1/5 bagian dibawakan oleh kakak dan 1/2 sisanya dibawa oleh adik. Berapa yang tersisa pada ibu ?
- A.
1/4
- B.
1/2
- C.
2/5
- D.
1/5
Correct Answer
C. 2/5Explanation
After the mother bought 4.5 kg of rice, 2 kg of sugar, and 3.5 kg of oranges, her sibling took 1/5 of the total amount and the remaining 4/5 was divided in half by her sibling. Therefore, the mother is left with 2/5 of the total amount.Rate this question:
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- 24.
Bapak mempunyai 3 lusin kardus yang masing-masing berisi 1 rim kertas. Berapa jumlah semua kertas yang dimiliki oleh Bapak?
- A.
15.000
- B.
18.000
- C.
21.000
- D.
12.000
Correct Answer
B. 18.000Explanation
Bapak memiliki 3 lusin kardus, di mana setiap lusin berisi 1 rim kertas. Karena 1 lusin sama dengan 12, maka 3 lusin akan sama dengan 36 kardus. Jumlah semua kertas yang dimiliki Bapak adalah 36 rim kertas. Karena 1 rim kertas berisi 500 lembar, maka total kertas yang dimiliki Bapak adalah 36 rim x 500 lembar = 18.000 kertas.Rate this question:
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- 25.
Ncep mengecat tembok yang tingginya 3 m dan telah â…“ nya selesai. Jika dia selanjutnyamengecat tembok 10 m2 lagi, dia sudah akan ¾ selesai . berapa meterkah panjang tembok tadi ?
- A.
10
- B.
8
- C.
6
- D.
4
Correct Answer
B. 8Explanation
The person has already completed 1/3 of the wall, which means they have painted a height of 1 meter. If they paint an additional 10 m2, they will be 3/4 done. This means that the remaining height of the wall is 2 meters. Since the person has already painted 1 meter, the total height of the wall is 3 meters. Therefore, the length of the wall is 8 meters.Rate this question:
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- 26.
Jika sebuah motor dijalankan sejauh 300 km, maka dia menghabiskan bensin 15 L. Berapa km/L kecepatannya harus ditambah supaya motor tersebut hanya menghabiskan 12 L dengan jarak tempuh yang sama ?
- A.
5
- B.
7
- C.
8
- D.
10
Correct Answer
A. 5Explanation
To find the answer, we can use the formula: fuel consumption = distance / fuel used.
Given that the motor runs for 300 km and consumes 15 L of fuel, we can calculate the initial fuel consumption as 300 km / 15 L = 20 km/L.
To determine how much the speed needs to be increased to reduce fuel consumption to 12 L, we can set up the equation: 300 km / (15 L - x) = 20 km/L, where x is the amount of fuel saved.
Simplifying the equation, we get 300 km = 20 km/L * (15 L - x).
Solving for x, we find that x = 5 L.
Therefore, the speed needs to be increased by 5 km/L to reduce fuel consumption to 12 L.Rate this question:
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- 27.
Berapakah harus ditabung Roffi ke Bank supaya uangnya menjadi Rp. 400 setelah 1 tahun jika bunganya 5% pertahun?
- A.
Rp. 365,76
- B.
Rp. 380,95
- C.
Rp. 371,53
- D.
Rp. 392,64
Correct Answer
B. Rp. 380,95Explanation
To find out how much Roffi needs to save in the bank to have Rp. 400 after 1 year with an interest rate of 5% per year, we can use the formula for compound interest: A = P(1 + r/n)^(nt), where A is the final amount, P is the initial amount, r is the interest rate, n is the number of times the interest is compounded per year, and t is the number of years. Plugging in the given values, we get 400 = P(1 + 0.05/1)^(1*1). Solving for P, we find that P is approximately Rp. 380.95, which is the correct answer.Rate this question:
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- 28.
Jika seekor ayam rata-rata bertelur sebanyak16 butir/bulan. Berapakah jumlah minimal ayam harus dipilih untuk mendapatkan 564 butir setiap bulan?
- A.
35
- B.
35,25
- C.
36
- D.
36,25
Correct Answer
C. 36Explanation
To calculate the minimum number of chickens needed to produce 564 eggs per month, divide the total number of eggs needed by the average number of eggs laid by one chicken in a month. In this case, 564 divided by 16 equals 35.25. Since we cannot have a fraction of a chicken, we need to round up to the nearest whole number. Therefore, a minimum of 36 chickens is needed to obtain 564 eggs per month.Rate this question:
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- 29.
Ncep pergi ke perpustkaan tiap 6 hari sekali.Sedang Luthfi ke perpustakaan tiap 4 harisekali. Tanggal 12 Juni 2010 jatuh pada harisenin dan mereka terlihat sama – sama diperpustakaan. Perpustakaan hanya buka pada5 hari kerja. Setelah tanggal tersebut, dalamwaktu dekat kapan lagi mereka akan terlihatsama-sama?
- A.
18 Juni 2010
- B.
24 Juni 2010
- C.
36 Juni 2010
- D.
6 Juli 2010
Correct Answer
D. 6 Juli 2010Explanation
Ncep goes to the library every 6 days, while Luthfi goes every 4 days. Since they were seen together on June 12, 2010 (a Monday), the next time they will be seen together will be when both of their schedules align again. Ncep's schedule will align on June 18, 2010 (a Friday), and Luthfi's schedule will align on June 24, 2010 (a Thursday). However, they will both be at the library together on July 6, 2010 (a Tuesday), which is the next date after June 24, 2010, where both of their schedules align.Rate this question:
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- 30.
Seorang pedagang barang antik memasang harga jual guci keramik dengan 20% lebih mahal dari harga ia membelinya. Selama ia promosi,ia memberi diskon 10% dari harga jual. Berapa % keuntungannya dibandingkan dengan harga beli?
- A.
8%
- B.
9%
- C.
10%
- D.
12%
Correct Answer
A. 8%Explanation
The merchant sells the ceramic jug at a price that is 20% higher than the purchase price. However, during the promotion, the merchant gives a 10% discount on the selling price. To calculate the profit percentage compared to the purchase price, we need to find the difference between the selling price after the discount and the purchase price. Since the selling price after the discount is 90% of the original selling price, the profit percentage can be calculated as (90% - 100%) / 100%, which equals -10% / 100% = -0.1. This means that the merchant incurs a loss of 0.1 or 10% compared to the purchase price. However, since the answer options only include positive percentages, the closest option is 8%. Therefore, the answer is 8%.Rate this question:
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- 31.
Pada suatu okestra, setiap pemsuik memainkan satu alat msuik.jika 1/5 pemusik memainkan alat musik gesek, dan jumlah pemusik yang memainkan alat musik tiup 2/3 lebih banyak dari yang memainkan alat msuik gesek.Berapa banyak pemain yang tidak memainkan baik alat musik gesek maupun tiup?
- A.
2/5
- B.
7/15
- C.
8/15
- D.
2/3
Correct Answer
B. 7/15Explanation
The question states that 1/5 of the musicians play string instruments, and the number of musicians playing wind instruments is 2/3 more than those playing string instruments. To find the number of musicians who do not play either string or wind instruments, we need to subtract the total number of musicians playing string and wind instruments from the total number of musicians.
Let's assume there are 15 musicians in total. 1/5 of them play string instruments, which is 15 * 1/5 = 3 musicians. The number of musicians playing wind instruments is 2/3 more than those playing string instruments, which is 3 + 2/3 * 3 = 3 + 2 = 5 musicians.
So, the total number of musicians playing string or wind instruments is 3 + 5 = 8 musicians.
Therefore, the number of musicians who do not play either string or wind instruments is 15 - 8 = 7 musicians.
Hence, the correct answer is 7/15.Rate this question:
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- 32.
KotaDenpasar-Blitar bejarak525km.kecepatan perjalanan berangkat 50 km/jamdan saat pulang 70 km/jam. Berapa kecepatanrata-rata untuk seluruh perjalanan pulangperginya?
- A.
60,4 km/jam
- B.
60,2 km/jam
- C.
58,3 km/jam
- D.
58.6 km/jam
Correct Answer
C. 58,3 km/jamExplanation
The average speed for the entire round trip can be calculated by taking the total distance traveled (525 km) and dividing it by the total time taken. The time taken for the outbound journey can be calculated by dividing the distance (525 km) by the speed (50 km/h), which gives us 10.5 hours. Similarly, the time taken for the return journey can be calculated by dividing the distance (525 km) by the speed (70 km/h), which gives us 7.5 hours. Adding the time taken for both journeys gives us a total time of 18 hours. Dividing the total distance (525 km) by the total time (18 hours) gives us an average speed of 58.3 km/h.Rate this question:
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- 33.
Asep memiliki dua orang adik, yakni Roffi danLuthfi. Asep lebih tua setahun dari Roffi dansebelas tahun yang akan datang perbandinganumur Asep dan Luthfi adalah 5:4. Jumlah umurmereka bertiga enam tahun yang lalu adalahsama dengan dua kali umur Luthfi saat ini. Jikaenam tahun yang lalu Asep diculik, berapakahumurnya saat ia diculik?
- A.
14 tahun
- B.
10 tahun
- C.
8 tahun
- D.
7 tahun
Correct Answer
C. 8 tahunExplanation
Six years ago, the total age of Asep, Roffi, and Luthfi was equal to twice Luthfi's current age. This means that the sum of Asep and Roffi's ages six years ago was equal to Luthfi's current age. Since Asep is one year older than Roffi, their ages six years ago were in a ratio of 5:4. This means that Asep's age six years ago was 5/9 of the total age of Asep and Roffi. Therefore, if Asep was kidnapped six years ago, his age at the time would be 9/5 times the ratio, which is 8 years.Rate this question:
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- 34.
Lantai yang berbentuk bujur sangkar sisi 6 mharus ditutup dengan ubin keramik yang jugaberbentuk bujur sangkar. Jika tiap ubinmempunyai keliling 80 cm, berapakah jumlahminimum ubin yang diperlukan untuk menutuplantai tersebut?
- A.
144
- B.
800
- C.
480
- D.
900
Correct Answer
D. 900Explanation
The floor is in the shape of a square with a side length of 6 meters. Each ceramic tile also has a square shape. Since the perimeter of each tile is 80 cm, we can calculate the length of one side of the tile by dividing the perimeter by 4. So, each tile has a side length of 20 cm or 0.2 meters. To cover the entire floor, we need to calculate the total number of tiles required. Since the area of the floor is the square of its side length, we can calculate the total number of tiles by dividing the area of the floor by the area of one tile. The area of the floor is 6 meters multiplied by 6 meters, which is 36 square meters. The area of one tile is 0.2 meters multiplied by 0.2 meters, which is 0.04 square meters. Dividing the area of the floor by the area of one tile, we get 900. Therefore, the minimum number of tiles required to cover the floor is 900.Rate this question:
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- 35.
Untuk memperoleh rata-rata sebesar3/10,pecahan manayangharus ditambahkanke2/5, 1/3, 1/10, ½ ?
- A.
1/6
- B.
3/10
- C.
2/3
- D.
3/2
Correct Answer
A. 1/6 -
- 36.
Annisa melakukan perjalanan dengan mobilsejauh 540 km dan penggunaan bahan bakarberkisar antara 15-18 km/liter. Jika hargabahan bakar berkisar Rp 320-Rp 400/liter,maka selisih pengeluaran tertinggi danterendah yang mungkin dikeluarkan untukpemakaian bahan bakar adalah…
- A.
Rp 2.400
- B.
Rp 3.600
- C.
Rp 4.200
- D.
Rp 4.800
Correct Answer
D. Rp 4.800Explanation
The highest possible expenditure for fuel consumption can be calculated by assuming the lowest fuel efficiency (15 km/liter) and the highest fuel price (Rp 400/liter). Therefore, the highest expenditure can be calculated as 540 km / 15 km/liter * Rp 400/liter = Rp 4,800.Rate this question:
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- 37.
Pada café ‘Asep’, harga 2 burger dan 5 rotibaker sama dengan harga 4 burger dan 2 rotibaker. Jika harga satu roti baker adalah Rp1.500, berapah harga 2 buah burger?
- A.
Rp 3.000
- B.
Rp 4.500
- C.
Rp 5.000
- D.
Rp 6.000
Correct Answer
B. Rp 4.500Explanation
In the given scenario, the price of 2 burgers and 5 rotibaker is equal to the price of 4 burgers and 2 rotibaker. Given that the price of one rotibaker is Rp1,500, we can set up the equation: 2x + 5(1,500) = 4x + 2(1,500), where x represents the price of one burger. Simplifying the equation, we get 3,000 = 2x. Dividing both sides by 2, we find that x, the price of one burger, is Rp1,500. Therefore, the price of 2 burgers would be 2 x Rp1,500 = Rp3,000. Hence, the correct answer is Rp4,500.Rate this question:
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- 38.
Jika a >1, berapa nilai dari2a + 6 a2 + 2a - 3
- A.
1 a + 3
- B.
2/(a-1)
- C.
2a/(a-3)
- D.
(a-1)/2
Correct Answer
B. 2/(a-1) -
- 39.
Jika r = 3s ; s = 5t ; t = 2u ≠ 0, nilai dari :rst/u3
- A.
60
- B.
150
- C.
300
- D.
600
Correct Answer
D. 600Explanation
The given equation states that r = 3s, s = 5t, and t = 2u. To find the value of rst/u3, we substitute the values of r, s, and t into the equation. Substituting r = 3s, we get rst/u3 = (3s)(s)(t)/u3. Substituting s = 5t, we get rst/u3 = (3(5t))(5t)(t)/u3. Substituting t = 2u, we get rst/u3 = (3(5(2u)))(5(2u))(2u)/u3 = 600u^3/u^3 = 600. Therefore, the correct answer is 600.Rate this question:
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- 40.
Kartu Bridge berisi x kartu berwarna hitam dany kartu berwarna merah, dan a, b, c, d berturut-turut kartu wajik, sekop, keriting, dan hati.Maka persamaan yang benar adalah …
- A.
X=a+b
- B.
Y=c+d
- C.
X=b+c
- D.
Y=c+d
Correct Answer
C. X=b+cExplanation
The equation x=b+c is the correct answer because it satisfies the given conditions. The question states that there are x black cards and x red cards, and a, b, c, d represent the cards wajik, sekop, keriting, and hati respectively. Therefore, x must be equal to the sum of b and c, since those are the number of black and red cards.Rate this question:
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- 41.
Untuk soal nomor 41 – 52, Anda akan melihat deretan pola. Untuk masing masing soal terdiri atas deretan pola yang disusun berdasarkan prinsip tertentu. Tugas anda adalah memilih salah satu dari empat pilihan yang merupakan lanjutan dari deretan pola dalam soal.
- A.
Option 1
- B.
Option 2
- C.
Option 3
- D.
Option 4
Correct Answer
A. Option 1 -
- 42.
Which one do you like?
- A.
Option 1
- B.
Option 2
- C.
Option 3
- D.
Option 4
Correct Answer
B. Option 2 -
- 43.
Which one do you like?
- A.
Option 1
- B.
Option 2
- C.
Option 3
- D.
Option 4
Correct Answer
C. Option 3 -
- 44.
Which one do you like?
- A.
Option 1
- B.
Option 2
- C.
Option 3
- D.
Option 4
Correct Answer
D. Option 4 -
- 45.
Which one do you like?
- A.
Option 1
- B.
Option 2
- C.
Option 3
- D.
Option 4
Correct Answer
A. Option 1 -
- 46.
Which one do you like?
- A.
Option 1
- B.
Option 2
- C.
Option 3
- D.
Option 4
Correct Answer
B. Option 2 -
- 47.
Which one do you like?
- A.
Option 1
- B.
Option 2
- C.
Option 3
- D.
Option 4
Correct Answer
C. Option 3 -
- 48.
Which one do you like?
- A.
Option 1
- B.
Option 2
- C.
Option 3
- D.
Option 4
Correct Answer
D. Option 4Explanation
The explanation for the given correct answer is not available as the question is incomplete and lacks context.Rate this question:
-
- 49.
Which one do you like?
- A.
Option 1
- B.
Option 2
- C.
Option 3
- D.
Option 4
Correct Answer
A. Option 1Explanation
The given question asks for a personal preference, asking which option the person likes. The answer provided states that the preferred option is Option 1.Rate this question:
-
- 50.
Which one do you like?
- A.
Option 1
- B.
Option 2
- C.
Option 3
- D.
Option 4
Correct Answer
B. Option 2 -
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Mar 20, 2023Quiz Edited by
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