Question

A's age is half that of B's age, when B's age is double, what will be tbe ratio of B's age to that of A's age?​

Answer 1

Step-by-step explanation:

A : B

x : 2x

Now

A : B

2x : 4x

1 : 2

Answer 2

A's age is half of B's age.

So the ratio of ages of A and B = 1:2.

Let A's age is x.

Then B's age is 2x.

B's age is doubled means, 2x becomes 4x.

ie, B's age is increased by 2x.

Then A's age will also increase by 2x and becomes x+2x = 3x.

So the ratio of B's age to that of A's age = 4x:3x = 4:3