A person travels for 4 hours at 60 kmph and then for 6 hours at 50 kmph. What is his average speed? MCQ with Answer and Explanation

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A person travels for 4 hours at 60 kmph and then for 6 hours at 50 kmph. What is his average speed?

A. 54 kmph

B. 55 kmph

C. 52 kmph

D. 53 kmph

Answer: Option A

Solution (By JKSSB Mock Tests)

Total distance = 4×60 + 6×50 = 240+300=540 km. Total time = 10 h. Avg speed = 540/10 = 54 kmph.

This question belongs to: Maths Percentage

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Practice More Percentage Questions

Question #1

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If the price of tea increases by 20%, by what percentage must consumption be reduced to keep expenditure constant?

A. 20%

B. 15%

C. 25%

D. 16.67%

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Correct Answer: Option D

Explanation:
Required reduction = (20 / 120) * 100 = 100 / 6 = 16.67%.

This question belongs to: Maths Percentage

Question #2

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A man spends 75% of his income. His income is increased by 20% and he increased his expenditure by 10%. What is the percentage increase in his savings?

A. 50%

B. 40%

C. 25%

D. 30%

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Correct Answer: Option A

Explanation:
Let original income = 100. Exp = 75. Savings = 25. New income = 120. New Exp = 75 + (10% of 75) = 82.5. New Savings = 120 - 82.5 = 37.5. Increase = 12.5. % Increase = (12.5 / 25) * 100 = 50%.

This question belongs to: Maths Percentage