Question

Age of chinnu and mini are in ratio 5:2 after 7 years the ratio of age is 4:3.find the age of chinnu 2 years before

Answer 1

3/4x-3/4=x-3

3/4x-x=-3+3/4

-x/4=-9/4

x=9.

Answer 2

5:2=5x+2x

4:3=4x+3x

5x+2x+4x+3x=7+2

14x=9

x=9/14 and