A goods train runs at the speed of 72 kmph and crosses a 350 m long platform in 26 seconds. What is the length of the goods train? Choices
A) 230 m
B) 140 m
C) 160 m
D) 170 m
E) None of these
Explanation:   Speed =[ 72 x (5/18) ]m/sec= 20 m/sec.   Time = 26 sec.   Let the length of the train be x metres.   Then,[ (x+350)/26 ]= 20   =&gt; x + 350 = 520   =&gt; x = 170. Answer: 170 m
<result>D</result>
A goods train runs at the speed of 72 kmph and crosses a 350 m long platform in 26 seconds. What is the length of the goods train?