Question

Question 51.What is the speed of the train?

1. The train crosses a signal pole in 13 seconds

2. The train crosses a platform of length 250 meters in 27 seconds

3. The train crosses another train running in the same direction in 32 seconds

• A. (a) 1 and 3
• B. (b) 2 and 3
• C. (c) 1 and 2
• D. (d) 1, 2 and 3

Answer 1

The correct option is C (c) 1 and 2

Answer 51.(c) Statement 1 and 2 are necessary to answer the question.

1+2 = The train crosses platform 9250 m) in 27-13=14 seconds

Therefore speed of the train = 250/14 m/sec.

Note that Statement (3) does not give the length or speed of the second train, so it is useless.