A train runs at the speed of 72 kmph and crosses a 250 m long platform in 26 seconds. What is the length of the train? Choose the correct choice from the following answers:
A) 270 m B) 210 m C) 340 m D) 130 m E) 140 m
Explanation:   Speed= 72 kmph = 72×10/36 = 20 m/s   Distance covered = 250+ x where x is the length of the train   Time = 26 s   (250+x)/26 = 20   250+x = 26×20 = 520 m   x = 520-250= 
<gadget id="calculator">520-250</gadget>
<output>270</output>
270 m   270 mnswer: Option 270 m
<result>A</result>
A train runs at the speed of 72 kmph and crosses a 250 m long platform in 26 seconds. What is the length of the train?