Homework Help: MATHS

Posted by PRIYA on Wednesday, June 23, 2010 at 5:58am.

A TRAIN B SPEEDING WITH 120KMPH CROSSES ANOTHER TRAIN C, RUNNING IN THE SAME DIRECTION IN 2 MINUTES. IF THE LENGTH OF THE TRAIN B AND C BE 100M AND 200M RESPECTIVELY. WHAT IS THE SPEED OF THE TRAIN C

MATHS - MathMate, Wednesday, June 23, 2010 at 7:28am
Train B is faster than train C.

Train B's speed over train C has to travel 100m+200m in 2 minutes.

Excess speed = (100+200)/120 m/s
convert this to km/hr.

Add excess speed to 120 km/hr would then give the speed of train B.

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