Question

sum of the present ages of Geeta and Nisha are 42. Greta's age 4 years ago was 3 times the age of Nisha. find thier present ages.​

Answer 1

Step-by-step explanation:

let, the present age of Geeta be x years.

the present age of Nisha is y years.

a/c to condition 1

x+y=42........................1

4 years ago,

Geeta age was (x-4) years.

Nisha age was (y-4) years.

a/c to condition 2

3(y-4)=(x-4)

(x-4)=3(y-4)

x-4=3y-12

x-3y=-12+4

x-3y=-8....................2

by solving the equations

we get,

values of x and y as their ages.