Q.
A. 1 : 3
B. 3 : 2
C. 3 : 4
D. 2 : 3
E. None of the above
Correct choice: B
Explanation:
Let the speeds of the two trains be x m/sec and y m/sec respectively.
Then, length of the first train = 27x metres,
and length of the second train = 17y metres.
27x + 17y = 23x + 23y
4x = 6y