1.

A Train 125 M Long Passes A Man, Running At 5 Km/hr In The Same Direction In Which The Train Is Going, In 10 Sec. The Speed Of The Train Is?

Answer»

SPEED of the train RELATIVE to man = 125/10 = 25/2 m/sec.

= 25/2 * 18/5 = 45 km/hr

LET the speed of the train be x km/hr. Then, relative speed = (x - 5) km/hr.

x - 5 = 45 => x = 50 km/hr.

Speed of the train relative to man = 125/10 = 25/2 m/sec.

= 25/2 * 18/5 = 45 km/hr

Let the speed of the train be x km/hr. Then, relative speed = (x - 5) km/hr.

x - 5 = 45 => x = 50 km/hr.



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