Question

The number are such that the ratio between is 3:5 of each is increased by 10 the ratio between the new number so formed is 5:7. Find the original number.​

Answer 1

Answer:

let first number=3x

second number=5x

a.t.q

$\frac{3x + 10}{5x + 10} = \frac{5}{7}$

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

21x+30=25x+50

21x-25x=50-30

-4x=20

x=-5

hence,

first number=-15

second number=-25