Student: How long does a train 110 m long traveling at 60 kmph takes to cross a bridge of 390 m in length?\nOptions:\n(A) 18.9 sec\n(B) 88.9 sec\n(C) 22.9 sec\n(D) 30.00 sec\n(E) 72.0 sec.
Another student: Let's say, hmmm...

User
D = 110 + 390 = 500 m\nS = 60 * 5/18 = 50/3\nT = 500 * 3/50 = 30 sec Final answer: (D).
Assistant