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A man can cover a certain distance in 42 minutes. He covers two thirds of it at 4 Km/hr and the remaining 5 Km/hr. The total distance is

A) 3 km
B) 9 km
C) 1 km
D) 4.5 km

Correct Answer:

A) 3 km

Description for Correct answer:

\( \Large \frac{\frac{2}{3}d}{4} + \frac{\frac{1}{3}d}{5}=\frac{42}{60}\)

\( \Large \frac{2d}{12} + \frac{d}{15} = \frac{42}{60}\)

\( \Large \frac{10d + 4d}{60} = \frac{42}{60}\)

D = 3 km.

Part of solved Time and Distance questions and answers : >> Aptitude >> Time and Distance

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