Two trains start from a certain place on two parallel tracks in the same directions. The speed of the trains are 45km/hr. and 40km/hr. respectively. The distance between the two trains after 45 minutes will be Choose the correct choice from the following answers
A) 2 km 500 m  B) 2 km 750 m  C) 3 km 750 m  D) 3 km 250 m  E) None of these
Explanation:   In one hour the distance between the trains is 5 km.   In 45 mins = ¾ hour the distance would be equal to ¾ X 50   = 3.75 Km = 3 Km 750 m.   Answer 3 km 250 m
<result>D</result>
Two trains start from a certain place on two parallel tracks in the same directions. The speed of the trains are 45km/hr. and 40km/hr. respectively. The distance between the two trains after 45 minutes will be