A train running at a speed of 90 km/hr crosses a platform double its…

Question

A train running at a speed of 90 km/hr crosses a platform double its length in 36 seconds. What is the length of the platform in meters?

Accepted Answer

Option E. None of these. Answer & Solution Answer: Option E Solution: & Let the length of the train be x metres . & Then, length of the platform = (2x ) metres . & Speed of the train & = ( 90 × 518 )m/ & = 25m/sec & x + 2x25 = 36 & 3x = 900 & x = 300 & Hence, length of platform & = 2x = ( 2 × 300 ) m =…