Question

please solve this problem...... ​

Answer 1

Answer:

Let the present age of Hari and Harry be 5x and 7x years respectively.

After 4 years, Hari's age = 5x+4

After 4 years, Harry's age = 7x+4

Therefore , the ratio of their ages after eight years = 5x + 4

7x + 4

This is given to be 3:4

Therefore, 5x + 4 = 3

7x + 4 4

Cross multiplication gives

3 (7x+4) = 4 (5x+4)

Or 21 x + 12 = 20x + 16

Or 21x - 20x = 16 - 12

Or x = 4

Therefore, Hari's present age = 5x =5×4=20

Harry's present age = 7x = 7×4 = 28 years.