1.

 The speed of a boat in still water is 10 km/hr . If i can ravel 26 km downstream and 14 km upstream in the same time , the speed of he stream is :

A. 2 km/hr
B. 2.5 km/hr
C. 3 km/hr
D. 4 km/hr
Answer» D. 4 km/hr


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