The speed of a boat in still water is 8 km/hr. If it speed downstream – McqOptions

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1.	The speed of a boat in still water is 8 km/hr. If it speed downstream be 15 km/hr, then speed of the stream is ?
A.	7 km/hr
B.	7.5 km/hr
C.	9 km/hr
D.	None of these
Answer» B. 7.5 km/hr

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