Question

If a man's speed with and against the water current in a river b 15 kilometre per hour and 5 kilometre per hour then find out the main speed in still water and the speed of the river

Answer 1

Answer:

Hi guys!!!!!

X=10 Y=5

Explanation:

X speed of man Y speed of river

X+Y=15

X-Y=5

X=10 Y=5

hope it may help you

Answer 2

hey dude !!

let X be speed of man

let Y be speed of river

=>> A.T.O

first equation will be

X+Y = 15

second equation will be

X-Y =5

by substitution method

X= 10

Y= 5

hope this helps you ✓✓✓✓