question contains two statements, A and B, giving certain data. You have to select the correct answer from (a), (b), (c) & (d) depending on the sufficiency of data given in the statements to answer the question.

Mark your answer as

(a)    if the question can be answered by using one of the statements alone but cannot be answered by using the other statement alone.

(b)    if the question can be answered by using either statement alone.

(c)    if the question can be answered by using both the statements together but cannot be answered by using either statement alone.

(d)    if the question cannot be answered even by using both the statements together.

How long will two trains traveling in the same direction take to pass each other if the speed of one of the trains is 30 m/sec.?

A.    The sum of the lengths of both trains is 260 m.

B.    The sum of their speeds is 80 m/sec.