Two trains start from A & B and travel towards each other at
speed of 100kmph and 120kmph resp. At the time of the meeting the
second train has traveled 10km more than the first.the distance
between them.
Choices
A) 30 km
B) 50 km
C) 70 km
D) 90 km
E) 110 km
Let the distance traveled by the first train be x km   then distance covered by the second train is x + 10km   x/100 = x+10 / 120   x= 50   so the distance between A &amp; B is x + x + 10 = 110 km   Answer is 110 km.
<result>E</result>
Two trains start from A & B and travel towards each other at
speed of 100kmph and 120kmph resp. At the time of the meeting the
second train has traveled 10km more than the first.the distance
between them.