Question

The ages of A and B are in the ratio 5:3. After 6 years, their ages will be in the ratio 7:5. The present age of A is​

Answer 1

Answer:

15 years

Step-by-step explanation:

Let the present ages of A and B be 5x and 3x

After 6 years, so we will add 6

5x+6 and 3x+6

Now the given ratio is 7:5

We will cross multiply them.

5(5x+6) = 7(3x+6)

25x+30 = 21x +42

25x-21x = 42-30

4x = 12

x = 12÷4

x= 3

The present age of A is:

5x = 5×3= 15 years.

So the present age of A is 15 years.