Question 59

Speed of a boat along and against the current are 14 kms/hr and 8 kms/hr respectively. The speed of the current is

Solution

If Upstream speed = $$x$$ km/hr and downstream speed = $$y$$ km/hr

The, speed of boat = $$\frac{x+y}{2}$$ km/hr and speed of current = $$\frac{y-x}{2}$$ km/hr

According to ques, upstream speed (x) = 8 km/hr

Downstream speed (y) = 14 km/hr

=> Speed of current = $$\frac{14-8}{2}$$

= $$\frac{6}{2}=3$$ km/hr

=> Ans - (D)

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