Aman'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:

10 km/h

Step-by-step explanation:

It is given that a man's speed with the current is 15 km/hr and the speed of the current is 2.5 km/hr.

Man's speed with the current (Downstream) = 15 km/hr

Speed of the current = 2.5 km/hr

We need to find the man's speed against the current(Upstream).

Let x be the Man's speed against the current.

Speed of the current

Multiply both sides by 2.

Therefore, the man's speed against the current is 10 km/hr.

step-by-step explanation:

use pothagarean therom

a^2+b^2=c^2 so first ac

acm is a right triangle because c= 90°

and am (the hypotenuse or c) =16+9 =25

but there is not enough info we need another angle or side length