The speed of a 100 m long running train A is 40% more than the speed of another 180 m long train B running in the opposite directions. To find out the speed of train B, which of the information given in statements P and Q is sufficient? P : The two trains crossed each other in 6 seconds.Q : The difference between the speeds of the two trains was 26 kmph.

• A. Only P is sufficient
• B. Only Q is sufficient
• C. Both P and Q are needed
• D. Both P u0026 Q are not sufficient