Class Test No. 2

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| By Sachin Pawar

Sachin Pawar

Community Contributor

Quizzes Created: 1 | Total Attempts: 65

Questions: 20 | Attempts: 65 | Updated: Mar 21, 2023

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Chapter No. 2
Fractions And Decimals

Questions and Answers

1.

Q1. Which one of the following is proper fraction?
- A.
  
  7/5
- B.
  
  3/2
- C.
  
  4/7
- D.
  
  4/3
- E.
  
  Option 5
Correct Answer
C. 4/7

Explanation
A proper fraction is a fraction where the numerator is smaller than the denominator. In this case, the fraction 4/7 is a proper fraction because 4 is smaller than 7.

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2.

Q2.
- A.
  
  10 / 3
- B.
  
  10 / 9
- C.
  
  30 /3
- D.
  
  10 / 7
Correct Answer
A. 10 / 3

Explanation
The correct answer is 10 / 3 because when dividing 10 by 3, the quotient is 3 with a remainder of 1. In decimal form, 10 / 3 is approximately equal to 3.333.

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3.

Q3.
- A.
  
  2 / 2
- B.
  
  14 / 15
- C.
  
  2 / 15
- D.
  
  None of these
Correct Answer
C. 2 / 15

Explanation
The given answer, 2 / 15, is correct because when we divide 2 by 15, we get a decimal value of approximately 0.1333. Since the answer options do not include a decimal value, we can conclude that the answer is 2 / 15.

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4.

Q4.
- A.
  
  1 / 2
- B.
  
  21 / 10
- C.
  
  11 / 10
- D.
  
  15 / 10
Correct Answer
B. 21 / 10

Explanation
The given answer, 21/10, is obtained by dividing 21 by 10. This can be simplified to 2.1, which is the decimal representation of the fraction.

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5.

Q5.
- A.
  
  4
- B.
  
  13
- C.
  
  13 / 9
- D.
  
  9 / 13
Correct Answer
C. 13 / 9

Explanation
The answer 13/9 is obtained by dividing 13 by 9. In the given sequence, the number 13 is followed by the division symbol (/) and then the number 9. This implies that the operation being performed is division. Therefore, dividing 13 by 9 gives the result of 13/9.

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6.

Q6.
- A.
  
  3 / 6
- B.
  
  9 / 18
- C.
  
  1 / 2
- D.
  
  2 / 1
Correct Answer
C. 1 / 2

Explanation
The answer 1/2 is obtained by dividing the numerator and denominator of the fraction 3/6 by 3. This simplifies the fraction to its simplest form.

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7.

Q7. What is the sum of 5.300 and 3.250
- A.
  
  8.550
- B.
  
  85.50
- C.
  
  5.6250
- D.
  
  8550
Correct Answer
A. 8.550

Explanation
The correct answer is 8.550 because when you add 5.300 and 3.250 together, the sum is 8.550.

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8.

Q8. What is the value of 29.35 - 04.56
- A.
  
  23.75
- B.
  
  16.35
- C.
  
  16.25
- D.
  
  24.79
Correct Answer
D. 24.79

Explanation
The correct answer is 24.79 because when subtracting 04.56 from 29.35, we subtract each corresponding digit from right to left. Starting with the rightmost decimal place, 6 minus 6 equals 0. Then, 5 minus 5 equals 0. Next, 4 minus 4 equals 0. Finally, 2 minus 0 equals 2. Therefore, the result is 24.79.

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9.

Q9. Which one of the following is greatest
- A.
  
  5.0
- B.
  
  0.5
- C.
  
  0.005
- D.
  
  0.05
Correct Answer
A. 5.0

Explanation
The given options are 5.0, 0.5, 0.005, and 0.05. Among these options, 5.0 is the greatest number as it has the highest value.

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10.

Q10. 7 Rupees 7 paisa can be written in rupees as
- A.
  
  Rs7.07
- B.
  
  Rs7.70
- C.
  
  Rs0.707
- D.
  
  Rs 770
Correct Answer
A. Rs7.07

Explanation
The correct answer is Rs7.07 because it accurately represents 7 Rupees and 7 paisa. The first part, Rs7, represents 7 Rupees, and the second part, .07, represents 7 paisa. Therefore, Rs7.07 is the correct way to write 7 Rupees 7 paisa in rupees.

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11.

Q11. 5 cm in Km can be written as
- A.
  
  0.0005
- B.
  
  0.00005
- C.
  
  0.0005
- D.
  
  0.05
Correct Answer
B. 0.00005

Explanation
The correct answer is 0.00005 because when converting from centimeters to kilometers, we need to move the decimal point 5 places to the left. Since there are 5 zeros after the decimal point in 0.00005, it represents 5 cm in kilometers.

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12.

Q12. The place value of 2 in 21.38 is
- A.
  
  Ones
- B.
  
  Tens
- C.
  
  Tenth
- D.
  
  Hundredth
Correct Answer
B. Tens

Explanation
In the number 21.38, the digit 2 is in the tens place. The tens place represents the second digit from the right, which has a value of 10 times the digit itself. Therefore, the place value of 2 in 21.38 is tens.

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13.

Q13. The value of 43.07 X 100 is
- A.
  
  4.307
- B.
  
  4307
- C.
  
  43.07
- D.
  
  430.7
Correct Answer
B. 4307

Explanation
The value of 43.07 multiplied by 100 is 4307. This is because when you multiply a number by 100, you are essentially moving the decimal point two places to the right. In this case, the decimal point in 43.07 is moved two places to the right, resulting in 4307.

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14.

Q14. The value of 0.03 X 1000 is
- A.
  
  0.00003
- B.
  
  3
- C.
  
  0.003
- D.
  
  30
Correct Answer
D. 30

Explanation
The value of 0.03 multiplied by 1000 is 30. This is because when we multiply 0.03 by 1000, we move the decimal point three places to the right, resulting in a value of 30.

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15.

Q15. The value of 0.80 ÷ 5 is
- A.
  
  16
- B.
  
  0.16
- C.
  
  1 / 16
- D.
  
  1.6
Correct Answer
B. 0.16

Explanation
The value of 0.80 divided by 5 is 0.16. To find this, we divide 0.80 by 5, which gives us 0.16.

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16.

Q16.
- A.
  
  3 / 2
- B.
  
  .
- C.
  
  5 / 3
- D.
  
  3 / 5
Correct Answer
D. 3 / 5

Explanation
The given answer is 3/5. This can be determined by dividing the numerator (3) by the denominator (5). When dividing 3 by 5, the result is 0.6, which can be expressed as a fraction by writing it as 6/10 and simplifying it to 3/5. Therefore, the correct answer is 3/5.

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17.

Q17.
- A.
  
  12
- B.
  
  1 / 12
- C.
  
  48
- D.
  
  1 / 48
Correct Answer
B. 1 / 12

Explanation
The correct answer is 1 / 12 because when we divide 1 by 12, we get the result 0.0833. This means that if we have 12 equal parts, each part is equal to 0.0833. Therefore, 1 / 12 represents one of those equal parts, which is 0.0833.

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18.

Q18. The value of 1.3 X 3.1 is
- A.
  
  403
- B.
  
  0.403
- C.
  
  4.03
- D.
  
  0.0403
Correct Answer
C. 4.03

Explanation
The value of 1.3 multiplied by 3.1 is 4.03.

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19.

Q19. The value of 52.5 ÷ 10 is
- A.
  
  5.25
- B.
  
  0.525
- C.
  
  525
- D.
  
  5250
Correct Answer
A. 5.25

Explanation
The value of 52.5 divided by 10 is 5.25.

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20.

Q20. The value of 26.3 ÷ 1000 is
- A.
  
  0.0263
- B.
  
  0.2630
- C.
  
  26300
- D.
  
  26.300
Correct Answer
A. 0.0263

Explanation
The value of 26.3 divided by 1000 is 0.0263. This can be calculated by moving the decimal point three places to the left, since dividing by 1000 is equivalent to multiplying by 0.001.

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