self Maths Puzzle Numerical Ability Time Distance and Speed

What is the speed of the train whose length is 210 metres?

I.

The train crosses another train (Howrah Express/12869) of 300 metres length running in opposite direction in 10 seconds.

II.

The train crosses another train (Howrah Express/12869) running in the same direction at the speed of 60 km/hr in 30 seconds.

A. I alone sufficient while II alone not sufficient to answer
B. II alone sufficient while I alone not sufficient to answer
C. Either I or II alone sufficient to answer
D. Both I and II are not sufficient to answer
E. Both I and II are necessary to answer

Read Solution (Total 0)

self Other Question

A and B throws one dice for a stake of Rs 11, which is to be won by the player who first throws a six. The game ends when the stake is won by A or B. If A has the first throw, then what are their respective expectations? What is the length of a running train crossing another 180 metre long train running in the opposite direction?

I.

The relative speed of the two trains was 150 kmph.

II.

The trains took 9 seconds to cross each other.

A. I alone sufficient while II alone not sufficient to answer
B. II alone sufficient while I alone not sufficient to answer
C. Either I or II alone sufficient to answer
D. Both I and II are not sufficient to answer
E. Both I and II are necessary to answer