Question

The present ages of Jai and Preet are in the ratio 5:2. The difference between their ages is 45 years. Find the sum of their present ages.​

Answer 1

let age of Jai=x

age of preet is equal to y

x/y=5/2

2x-5y=0-@1

x-y=45-@2

multiple 2 with @1 and 1 with@2

we get the following equation

2x-5y=0

2x-2y=90

then 3y=90

y=30

x=75