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A man can row with a speed of 15 km/hr in still water. If the stream flows at 5 km/hr then his speed in down stream is ..... ?

A10 km/hr

B5 km/hr

C20 km/hr

D22 km/hr

Answer:

C. 20 km/hr

Read Explanation:

Speed in still water - 15 km/hr Speed of stream = 5 km/hr Down stream speed = (15+5) km/hr = 20 km/hr


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