A Unique Quiz On Average Speed
The average speed of an object or person can be calculated as the distance travel divided by the time it took to cover the said distance. In class today we have come to cover the concept of average speed. Test out what you have understood by taking the quick test below. Good luck!
- 1.
A cyclist travels uphill at a speed of 8 km/h and downhill at a speed of 12 km/h. If the uphill journey takes 3 hours and the downhill journey takes 2 hours, what is the cyclist's average speed for the entire trip?
- A.
9.6 km/h
- B.
12.4 km/h
Correct Answer
A. 9.6 km/hExplanation
1. Calculate the distance traveled in each leg:
Uphill distance: Speed * Time = 8 km/h * 3 h = 24 km
Downhill distance: Speed * Time = 12 km/h * 2 h = 24 km
2. Calculate the total distance and total time:
Total distance: 24 km + 24 km = 48 km
Total time: 3 h + 2 h = 5 h
3. Calculate the average speed:
Average speed = Total distance / Total time
Average speed = 48 km / 5 h
Average speed = 9.6 km/hRate this question:
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- 2.
What is the average speed if you travel 20 miles in 4 hours?
- A.
5 mph.
- B.
50 mph.
Correct Answer
A. 5 mph.Explanation
Average speed is calculated by dividing the total distance traveled by the total time taken. In this case, the distance is 20 miles, and the time is 4 hours.
Therefore, the average speed is 20 miles / 4 hours = 5 mph.Rate this question:
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- 3.
What is the average speed if you travel 100 miles in 2 hours?
- A.
5 mph.
- B.
50 mph.
Correct Answer
B. 50 mph.Explanation
Average speed is calculated by dividing the total distance traveled by the total time taken. In this case, the distance is 100 miles, and the time is 2 hours.
Therefore, the average speed is 100 miles / 2 hours = 50 mph.Rate this question:
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- 4.
A car travels 200 km at a speed of 60 km/h and then travels another 300 km at a speed of 40 km/h. What is the average speed of the car for the entire trip?
- A.
48 km/h
- B.
52 km/h
- C.
72 km/h
- D.
36 km/h
Correct Answer
A. 48 km/hExplanation
Step 1: Calculate the time taken for each leg of the trip.
Time for the first 200 km: Time = Distance / Speed = 200 km / 60 km/h = 3.33 hours
Time for the next 300 km: Time = Distance / Speed = 300 km / 40 km/h = 7.5 hours
Step 2: Calculate the total distance and total time.
Total distance: 200 km + 300 km = 500 km
Total time: 3.33 hours + 7.5 hours = 10.83 hours
Step 3: Calculate the average speed.
Average speed = Total distance / Total time
Average speed = 500 km / 10.83 hours
Average speed ≈ 48 km/hRate this question:
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- 5.
What is the average speed if you travel 300 miles in 6 hours?
- A.
50 mph.
- B.
5 mph.
Correct Answer
A. 50 mph.Explanation
The average speed is calculated by dividing the total distance traveled by the total time taken. In this case, the total distance traveled is 300 miles and the total time taken is 6 hours. Therefore, the average speed is 300 miles divided by 6 hours, which equals 50 mph.Rate this question:
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Current Version
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Oct 01, 2024Quiz Edited by
ProProfs Editorial Team -
Nov 10, 2010Quiz Created by
Kayleem
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