A train overtakes two persons who are walking in the same direction to that of the train at 2 kmph and
4 kmph and passes them completely in 9 and 10 seconds respectively. What is the length of the train?
Choose the correct choice from the following answers
A) 40 m	B) 10 m	C) 20 m	D) 30 m	E) 50 m
Let speed of the train be v kmph   (v-2) :(v-4) = 10:9   9 v -18=10 v-40   v=22   Length of the train=(22-2) x 5/18 x 9=50 metre   Answer: 50 m
<result>E</result>
A train overtakes two persons who are walking in the same direction to that of the train at 2 kmph and
4 kmph and passes them completely in 9 and 10 seconds respectively. What is the length of the train?