Question

17. A boy is 12 years old and his sister is 4 years old. In how many years’ time will the ratio of
their ages be 2 : 1?
Please help me with this sum!

Answer 1

Answer:

in 4 years......

Hope it helps

Answer 2

Ratio of present ages = 12 : 4

= 3 : 1

given ratio = 2 :1

let us add these two ratios

3 + 2

1 1

5

1

= 5 years

for your information boy will be 17 years old and sister will be 9 years old after 2 : 1 years

5 + 12 = 17

5 + 4 = 9