A goods train runs at the speed of 72 kmph and crosses a 250 m long platform in 26 seconds. What is the length of the goods train?

(a) 230 m

(b) 240 m

(c) 260 m

(d) 270 m

Speed = (72 x 5/18) m/sec = 20 m/sec.

Time = 26 sec.

Let the length of the train be x metres.

Then, (x + 250)/26 = 20

=> x + 250 = 520
=> x = 270.