one -third of certain journey is covered at the rate of 25kmph,one-fourth at t

Question

one -third of certain journey is covered at the rate of 25kmph,one-fourth at the rate of 30kmph and the rest at 50 kmph.find the average speed for the whole journey.

Options:

A . 33.333 Km/hrs

B . 22.233 Km/hrs

C . 66.633 Km/hrs

D . 43.463 Km/hrs

Answer: Option A
Explanation :

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