A bus and a car, which are 2.73 km apart, are moving towards each other at a speed of 70 km/hr and 40 km/hr respectively. By how much percent should the speed of car be increased, so that they cross each other in 1.4 min?

A bus and a car, which are 2.73 km apart, are moving towards each othe

1.	A bus and a car, which are 2.73 km apart, are moving towards each other at a speed of 70 km/hr and 40 km/hr respectively. By how much percent should the speed of car be increased, so that they cross each other in 1.4 min?
A.	13.5%
B.	17.5%
C.	20.5%
D.	22.5%
E.	24.5%
Answer» C. 20.5%

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A bus and a car, which are 2.73 km apart, are moving towards each other at a speed of 70 km/hr and 40 km/hr respectively. By how much percent should the speed of car be increased, so that they cross each other in 1.4 min?

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