Question

the ages of a and b are in the ratio 5:7. If a was 9 years old an b 9 years younger the age of a woud have been twice the age of b. Find their ages.

Answer 1

Step-by-step explanation:

let X be included in the ratio .

a=5x and b=7 x

new age of a =5x+9

new age of b =7x-9

A/q 5x+9=2(7x-9)

5x+9=14x-18

x=3

age of a =15years

age of b=21 years

Answer 2

Answer:

let the ratio in no. =5x 7x

A/q,

5x+9=2(7x-9)

5x+9=14x-9

5x-14x= -9-9

9x= -18

x= -18/9

x= -2

hope you get answer

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