If a man walks at 5/6 of his normal speed, he arrives 30 minutes late. What is his usual time?

Correct answer marked below

1 1/4 h

2 h

2 1/2 h

Correct

2 3/4 h

3 1/2 h

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Explanation

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Official Explanation

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When the man walks at 5/6 of his usual speed, he is 30 minutes late. The distance remains constant. We can set up the equation:

\frac{5s}{6}

*(t+30) =…

Comments

RockyApr 24, 2024

Can you explain more?

RohitJan 18, 2025

Thank you very much!

What this question tests

Your application of distance = rate × time to trains, boats, and commuters, including relative speed.

Mixing units (miles per hour vs. minutes) or averaging speeds — average speed is total distance over total time.