BA LLB Banaras Hindu University 2017 Solved Paper

Question : 113 of 170

Marks: +1, -0

A man goes from Mysore to Bangalore at a uniform speed of

40 {km} {/} {h}

and comes back to Mysore at a uniform speed of

60 {km} {/} {h}

. His average speed for the whole journey is

Solution:

Let distance

=120 {km}

(LCM of 40,60 )
Time

=3 {h}

and

2 {h}

∴ Required value

=\;{2 × 120}/{5}=48 {km} {/} {h}

Go to Question:

Prev Question

Next Question