A man makes four trips of equal distances. His speed on first trip was – McqOptions

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1.	A man makes four trips of equal distances. His speed on first trip was 60 km/hr and in each subsequent trip his speed was half of the previous trip.Â What is the average speed (in km/hr) of the man in these four trips?
A.	16
B.	30
C.	28.125
D.	27.5
Answer» B. 30

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