Two trains, each 100 m long, moving in opposite directions, cross eac…

Question

Two trains, each 100 m long, moving in opposite directions, cross each other in 8 seconds. If one is moving twice as fast the other, then the speed of the faster train is:

Accepted Answer

Option C. 60 km/hr. Answer & Solution Answer: Option C Solution: & Let\, the\, speed\, of\, the\, slower\, train\, be\,x\, m/sec & Then,\, speed\, of\, the\, faster\, train = 2x\, m/sec & Relative\, speed = \, ( x + 2x )\, m/sec = 3x\, m/sec & 100 + 100 8 = 3x & 24x = 200 & x = 253 & So,\, speed\,…