Question

If difference between th ages X and Yis
12years and the ratio of their ages is 3:7 then
what is the age of Y​

Answer 1

ratio between ages if x and y = 3:7

difference between x and y's age = 12

let x age= 3x

let y age= 7x

7x-3x=12

4x=12

x=12/4

x=3 (12 divided by 4 = 3)

So, x=3

now,

x's age = 3x

= 3×3 (substitute d value of x in the x's place and here x value= 3)

= 9

y's age = 7x

= 7×3 (substitute d value of x in the x's place and here x value= 3)

= 21

Therefore,

x's age = 9

y's age = 21

and to prove with the statement: the difference between their ages is 12

21 - 9 = 12

Hope it helps

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