Question

the ratio of the present age of father and son is 9:2. if the age of son is 12 years then find the ratio of age of father and son 2 years ago?​

Answer 1

Step-by-step explanation:

We have,

Let, percentage, 8x,3x

Then, after 10 year;

3x+108x+10=12

8x+10=6x+20

8x−6x=20+10

2x=10

x=210

x=5

∴ Present age of father,

=8x

=8×5

=40 years