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A swimmer swi...

Question

A swimmer swims in still water at a speed $= 5 km/h$ . He enters a $200 m$ wide river, having river flow speed of $3 km/h$ . The time in which he reaches directly opposite bank is

5

minutes

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2

minutes

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3

minutes

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4

minutes

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Solution

The correct option is C $3$ minutes
Answer (2)

$t = \frac{0.2 km}{4 {kmh}^{- 1}} = \frac{1}{20} h = \frac{60}{20} min$
$t = 3 minutes$

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A swimmer swims in still water at a speed =5 km/h. He enters a 200 m wide river, having river flow speed of 3 km/h. The time in which he reaches directly opposite bank is

The correct option is C 3 minutesAnswer (2) t=0.2 km4 kmh−1=120h=6020min t=3 minutes

A swimmer swims in still water at a speed $= 5 km/h$ . He enters a $200 m$ wide river, having river flow speed of $3 km/h$ . The time in which he reaches directly opposite bank is

The correct option is C $3$ minutes
Answer (2)

$t = \frac{0.2 km}{4 {kmh}^{- 1}} = \frac{1}{20} h = \frac{60}{20} min$
$t = 3 minutes$