Question

What is the sped of train ?
I. Trin crosses a signal post in 15 seconds.
II. Train crosses a 150 metre long platform in 27 seconds.
III. Train crosses another train running in the same direction on a parallel track in 32 seconds.
A. I and II
B. I and III
C. II and III
D. Any two of the three

Answer 1

Correct Answer - A
From statements I and II,
We can say that train crosses 250 m in (27-15) seconds
`therefore"speed"=(250)/(12)`
`=20.83m//s.`