1.

A swimmer's speed in the direction of flow of river is 16 km h^(- 1).Against the direction of flow of river, the swimmer's speed is 8 km h^(-1). The swimmer's speed in still water and the velocity of flow of the river respectively are

Answer»

`12KM h^(-1) , 4km h^(-1)`
`4km h^(-1), 12 KM h^(-1)`
`24 km h^(-1) , 16 kmh^(-1)`
`16km h^(-1) , 24 km h^(-1)`

Solution :According to the question u + v = 16 and u - v = 8
By solving, we get the speed of swimmer in STILL water, u ` = 12km h^(-1)`
Speed of flow of river ` v = 4kmh^(-1)`


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