A river flows at 4 km/hr. The speed of a boat in downstream is thrice the speed of that boat in upstream. Find out the speed of the boat in still water?

A river flows at 4 km/hr. The speed of a boat in downstream is thrice

1.	A river flows at 4 km/hr. The speed of a boat in downstream is thrice the speed of that boat in upstream. Find out the speed of the boat in still water?
A.	8 km/hr
B.	4 km/hr
C.	6 km/hr
D.	12 km/hr
Answer» B. 4 km/hr

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A river flows at 4 km/hr. The speed of a boat in downstream is thrice the speed of that boat in upstream. Find out the speed of the boat in still water?

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