Question

Train-A crosses pole in 25 seconds and another Train-Scrosses a pole in I minute and 15 seconds. The length of train-A is half Length of train-B. What is the
respective ratio between thespeed of Train-A and Train-B?
(A) 3:2
(B) 3:4
(C) 4:3
(D) Cannot be determined
(E) None of these

Answer 1

Correct Answer - (A) 3:2

Reason

If the length of train A be x metre, then length of train B = 2x metre

When a train crosses a pole, it covers a distance equal to its own length.

∴

∴

Required ratio =

x

25

x

25

:

2x

75

2

x

75

=

1

25

×75

1

25

×

75

:

2

75

×75

2

75

×

75

= 3 : 2