Question

Walking 6/5 th of its usual speed, a train is 10 minutes late. Find the usual time to cover the journey

(A) 60 minutes
(B) 50 minutes
(C) 40 minutes
(D) 30 minutes​

Answer 1

Preferred approach for this one is the use of ratios as suggested by Karishma

So if train walks at 5/6 of usual speed, it is going to take 6/5 of its time

If its 10 minutes late then 1/5x =10

So x = 50 minutes = 5/6 hours

Hope it helps

Cheers!