The speed of the current is 5 km/h. A motorboat goes 10 km upstream and back again to the starting point in 50 min. The speed, (in km/h) of the motorboat in still water is ?

The speed of the current is 5 km/h. A motorboat goes 10 km upstream an

1.	The speed of the current is 5 km/h. A motorboat goes 10 km upstream and back again to the starting point in 50 min. The speed, (in km/h) of the motorboat in still water is ?
A.	20 km/h
B.	26 km/h
C.	25 km/h
D.	28 km/h
Answer» D. 28 km/h

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The speed of the current is 5 km/h. A motorboat goes 10 km upstream and back again to the starting point in 50 min. The speed, (in km/h) of the motorboat in still water is ?

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