One third of the journey is covered at the rate of 30 km/hr, one fourth of the remaining is covered at 40 km/hr and remaining is covered at 50 km/hr. What is the average speed of the whole journey? - Study24x7
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27 Jan 2023 05:36 PM study24x7 study24x7

One third of the journey is covered at the rate of 30 km/hr, one fourth of the remaining is covered at 40 km/hr and remaining is covered at 50 km/hr. What is the average speed of the whole journey?

A

45 km/hr

B

40 km/hr

C

38 km/hr

D

39.5 km/hr

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