A person travelled from one place to another at an average speed of 40 – McqOptions

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1.	A person travelled from one place to another at an average speed of 40 km/hour and back to the original place at an average speed of 50 km/hour . What is his average speed in km/hour during the entire round-trip?
A.	45
B.	27
C.	400/9
D.	Impossible to find out unless the distance between the two places is known.
Answer» D. Impossible to find out unless the distance between the two places is known.

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