Two trains are moving in opposite directions 60 km/hr and 90 km/hr. Their lengths are 1.10 km and 0.9 km respectively. The time taken by the slower train to cross the faster train in seconds is_________?

(A) 36 (X)
(B) 45 (X)
(C) 48 ()
(D) 49 (X)

Answers: Two train are moving in opposite  directions 60 Km/hr and 90 Km/hr. Their lengths are 1.10 Km and 0.9 Km respectively. the time taken by the slower train to cross the faster train in seconds is 48.