Question

The ages of ‘X’ and ‘Y’ are in the ratio 5 : 7. Four years later, the sum of their ages will be 56 years. What are their present ages?

Answer 1

Answer:

The ages of ‘X’ and ‘Y’ are in the ratio 5 : 7

Let

age of X is 5x,

age of Y is 7x

After 4 years

age of X = 5x + 4

age of Y = 7x + 4

5x + 4 + 7x + 4 = 56

12x + 8 = 56

12x = 56 - 8

12x = 48

x = $\frac{48}{12}$

x = 4

age of X is

5x = 5×4 = 20 years

age of Y is

7x = 7×4 = 28 years

Step-by-step explanation: