Two trains travelling in the same direction at 50 and 40 kmph completely pass off another in 1 1/2 minute. If the length of the first train is 125 m, what is the length of the second train?
Answers:
A) 300 m
B) 287 m
C) 125 m
D) 250m
E) 167 m
RS = 50 â€“ 40 = 10 * 5/18 =25/9 mps   T = 90 sec   D = 25/9 *90= 
<gadget id="calculator">25/9 *90</gadget>
<output>250</output>
250 m   125   --------   125 m   Answer: 125 m
<result>C</result>
Two trains travelling in the same direction at 50 and 40 kmph completely pass off another in 1 1/2 minute. If the length of the first train is 125 m, what is the length of the second train?