Two trains travelling in the same direction at 72 and 36 kmph completely pass off another in 1 minute. If the length of the first train is 250 m, what is the length of the second train? Pick:	A) 228	B) 350	C) 175	D) 99	E) 171
RS = 72 â€“ 36 = 36 * 5/18= 
<gadget id="calculator">36 * 5/18</gadget>
<output>10</output>
10 mps   T= 60 sec   D = 10 * 60= 
<gadget id="calculator">10 * 60</gadget>
<output>600</output>
600 m   250   --------   350 m   Answer: 350
<result>B</result>
Two trains travelling in the same direction at 72 and 36 kmph completely pass off another in 1 minute. If the length of the first train is 250 m, what is the length of the second train?