RRB Non Technical Model Papers 6 with solutions

Question : 56 of 100

Marks: +1, -0

Monika covers a certain distance at the speed of 48 km/h and then she travels back at a speed of 32 km/h to go to her initial position. What is the average speed of Monika for the entire journey?

36 km/h
40 km/h
45 km/h
None of these

Validate

Solution:

(4) Let the distance covered from one side = d
∴ Total distance = 2d
Total time taken =

d/48+ d/32 = {5d}/96

Average speed =

{2d}/{5d}/96= 38.4

km/h

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