Question

A man swims downstream a distance of 15 km in 1 hour. If the speed of the current is 5 km/hour, the time taken by the man to swim the same distance upstream is

विकल्प

• 1 hour 30 minutes

• 45 minutes

• 2 hours 30 minutes

• 3 hours

Answer 1

3 hours

Explanation:

`x + 5` = 15 kmph

`x` = 10 kmph

Now, t = `15/5` = 3 hours