A train covers a certain distance in 3 hours. If the speed of the train is reduced by 20 km per hour, then to cover the same distance it takes 1 hour more. So find the difference between the normal time taken and the time taken after increasing the original speed by 50%.

A train covers a certain distance in 3 hours. If the speed of the trai

1.	A train covers a certain distance in 3 hours. If the speed of the train is reduced by 20 km per hour, then to cover the same distance it takes 1 hour more. So find the difference between the normal time taken and the time taken after increasing the original speed by 50%.
A.	1 Hours
B.	3 Hours
C.	4 Hours
D.	2 Hours
Answer» B. 3 Hours

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A train covers a certain distance in 3 hours. If the speed of the train is reduced by 20 km per hour, then to cover the same distance it takes 1 hour more. So find the difference between the normal time taken and the time taken after increasing the original speed by 50%.

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