A ship sails out to a mark at the rate of 15km/hr and sails back at th – McqOptions

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1.	A ship sails out to a mark at the rate of 15km/hr and sails back at the rate of 10 km/hr. The average rate of sailing is:
A.	12.5km/hr
B.	12km/hr
C.	25km/hr
D.	5km/hr
Answer» C. 25km/hr

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