Question

What must be added to each term of the ratio 3:5, so that it becomes 4:5​

Answer 1

3+y/5+y=4/5

let y be the no.to be added

5(3+y)=4(5+y)

15+5y=20+4y

-5= -y

y=5

Answer 2

5 must be added to both the terms to get the ratio 4:5.

Explanation:

(3+x)/(5+x)=4/5

Therefore,

15+5x=20+4x

=5x-4x=20-15

=x=5

I hope it's helpful!