Question

A train 100 meter long takes 3 second to cross a man walking at the rate of 6km/hr in a direction opposite to
that of the train. Find the speed of the train.
(a) 94 m/s
(C)110 m/s
(b) 100 m/s
(d) 108 m/s
(e) None of these​

Answer 1

Answer:

(a) 94 m/s

Step-by-step explanation:

Let speed of train be S km/h.

Speed of train relative to man = [S – (– 6)] km/h

(S+6) × 5/18 m/s

now,

(S+6) × 5/18 = 100 ÷ (18/5)

⇒S= 94 m/s