In the given questions, two quantities are given, one as Quantity I and another as Quantity II. You have to determine relationship between two quantities and choose the appropriate option
Q. Find out the length of train X given that speed of train X is 20 m/sec.
I. Train X crosses another train Y moving in opposite direction in 6 sec and the speed of train Y is 50% more than the speed of train X.
II. Length of train Y is 50% less than length of train X.

A) Both I and II together B) Only statement I C) Only statement II D) Both I and II together are not sufficient E) Either I or II alone