The speed of a motor-boat in still water is x | vedclass

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(C) The speed of the motor-boat in still water is $x \, km/hr$.The speed of the river current is $5 \, km/hr$.When moving upstream, the effective spee

Vedclass · Accepted Answer

$\frac{y}{x-5}$

Vedclass · Answer

(C) The speed of the motor-boat in still water is $x \, km/hr$.The speed of the river current is $5 \, km/hr$.When moving upstream, the effective speed of the boat is the difference between the speed of the boat in still water and the speed of the current.Therefore, the upstream speed $= (x - 5) \, km/hr$.The distance to be covered is $y \, km$.Using the formula $	ext{Time} = \frac{	ext{Distance}}{	ext{Speed}}$, we get:$	ext{Time} = \frac{y}{x - 5} \, 	ext{hours}$.

The speed of a motor-boat in still water is $x \, km/hr$ and the speed of the current of the river is $5 \, km/hr$. Given $x$ > 5, what is the time taken to cover a distance of $y \, km$ upstream?

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