A train travelling at 48 kmph completely crosses another train having…

Question

A train travelling at 48 kmph completely crosses another train having half its length and travelling in opposite direction at 42 kmph, in 12 seconds. It also passes a railway platform in 45 seconds. The length of the pl…

Accepted Answer

Option A. 400 m. Answer & Solution Answer: Option A Solution: & Let\, the\, length\, of\, the\, first\, train\, be\,x\, metres & Then,\, the\, length\, of\, the\, second\, train\, is\, x/2 \, metres & Relative\, speed = ( 48 + 42 )\, kmph & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\…

A train travelling at 48 kmph completely crosses another train having half its length and travelling in opposite direction at 42 kmph, in 12 seconds. It also passes a railway platform in 45 seconds. The length of the platform is

Solution