Question

two numbers are Such that ratio between is 3:5 if each increased by 10 the ratio between the new number formed is 5:7 find the num

Answer 1

Given no. are in ratio 3:5
let 1st no. be 3x
and 2nd no. be 5x

Given if we add 10 to both the numbers ratio will be 5:7
so,
3x+10. 5
_____ = __
5x+10. 7

7(3x+10)=5(5x+10)

21x +70 = 25x +50
(25-21)x = 70-50
4x = 20
x = 20/4
x = 5
therefore the numbers are
3x » 3*5= 15
and
5x » 5*5= 25

Answer 2

Let common part be x
ATP3x+10+5x+10=5x+7x
8x+20=12x
8x-12x=-20
-4x=-20
-x=-5
x=5
So nos are
3x=3*5=15
5x=5*5=25