SSC CHSL Model Paper 18

Question : 64 of 100

Marks: +1, -0

Two trains A and B have to cover the same distance. They approach their destination at the same time with speed ratio 4:5. If train B takes 1 hour 40 minutes then how much more time will train A require to arrive?

30 minutes
28 minutes
25 minutes
29 minutes

Validate

Solution:

1 hour 40 minutes = 100 minutes
Let time taken by A = x minutes
According to question, since speed and time are inversely related

{\Speed \of \A }/{\Speed \of \B }={\Time \taken \by \B}/{\Time \taken \by \A}

4/5=100/x

x = 125

Required time

= 125 -1 0 0 = 25

minutes

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