A swimmer's speed downstream is 11 km/h and speed of the stream is 1.5 km/h. Find the upstream speed of swimmer. ?

A swimmer's speed downstream is 11 km/h and speed of the stream is 1.5

1.	A swimmer's speed downstream is 11 km/h and speed of the stream is 1.5 km/h. Find the upstream speed of swimmer. ?
A.	8 km/h
B.	9.5 km/h
C.	9 km/h
D.	6. 25 km/h
Answer» B. 9.5 km/h

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A swimmer's speed downstream is 11 km/h and speed of the stream is 1.5 km/h. Find the upstream speed of swimmer. ?

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