How long does a bus 100 m long traveling at 50 kmph takes to cross a bridge of 150 m in length?
Options:
(A) 18
(B) 16
(C) 15
(D) 11
(E) 12 Now, let's think a bit. Some random thoughts:
D = 100 + 150 = 250 m
S = 50 * 5/18 = 125/9
T = 250 * 9/125 = 18 sec
The final answer: (A).