Question

A man's speed with the current is 15 km/hr and the speed of the current is 2.5 km/hr.The man's speed against the current is

Answer 1

Answer:

Let man's speed v . With current it's velocity

$= v + 2.5 = 15 \\ \implies \: v = 15 - 2.5 = 12.5$

And against current

$= v - 2.5 = 12.5 - 2.5 = 10 \: kmph$

Answer 2

Answer:10

Explanation: man's speed with current is 15 and of current is 2.5 so speed of man is 12.5 . But here we hv to find against the current so it will be 12.5-2.5=10