A student takes 1.25 hours to travel from home to school at a speed of 4km/h. By what percentage should he increase his speed to reduce the time by 25% to cover the same distance from school to home?

A student takes 1.25 hours to travel from home to school at a speed of

1.	A student takes 1.25 hours to travel from home to school at a speed of 4km/h. By what percentage should he increase his speed to reduce the time by 25% to cover the same distance from school to home?
A.	50%
B.	25%
C.	45%
D.	\(33\frac{1}{3}\% \)
Answer» E.

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A student takes 1.25 hours to travel from home to school at a speed of 4km/h. By what percentage should he increase his speed to reduce the time by 25% to cover the same distance from school to home?

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