A man travels a certain distance at a speed of 40 kmph and returns by increasing his speed by 50%. What is his average speed for the whole journey?

A man travels a certain distance at a speed of 40 kmph and returns by

1.	A man travels a certain distance at a speed of 40 kmph and returns by increasing his speed by 50%. What is his average speed for the whole journey?
A.	50 kmph
B.	46 kmph
C.	48 kmph
D.	52 kmph
Answer» D. 52 kmph

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A man travels a certain distance at a speed of 40 kmph and returns by increasing his speed by 50%. What is his average speed for the whole journey?

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