The Train, The Car and The Bicycle.

[MathBuster Forum]

Here is a problem posed by a member. Give it a shot...Partial Solutions Welcome! 

A train 360 m in length, travelling at a uniform speed overtook a car, travelling parallel to the tracks at 72 kmph and passed it in 12 seconds. Fortyeight minutes later, the train starts overtaking a cyclist and passed him in 9 seconds.

How much time after the train overtook the cyclist would the car over take him?

A) 2 hrs 24 min 36 sec

B) 3 hrs 49 min 49 sec

C) 3 hrs 12 min 9 sec

D) 2 hrs 24 min 27 sec

[anupama mahajan]

Kindly Help me in the following problem:

Two students are running on circular track with speeds 20km/h and 30 km/h. Find the number of distinct meeting points if they are running in same/opposite direction.

 

Ms Anupama Mahajan

(HOD Maths, APS DK)