Question

the ages of hari and harry are in ratio 5:7.four years from now the ratio of their ages will be 3:4 . find their present ages

Answer 1

Heya !!

Here is your answer.

Given :
Ratio of ages of Hari and Harry = 5:7
Let the common ratio be k.

Therefore, age of Hari = 5k, and
age of Harry = 7k

Their ages after 4 years = 5k + 4 and 7k + 4.

It is given that after 4 years, ratio of their ages would be 3:4.

So, ATQ
$\frac{5k + 4}{7k + 4} = \frac{3}{4} \\ cross \: multiplying \\ = > 4(5k + 4) =3(7k + 4) \\ = > 20k + 16 = 21k + 12 \\ = > 16 - 12 = 21k - 20k \\ = > k = 4$
Therefore, common ratio, k = 4.

So, age of Hari = 5k = 5 × 4 = 20 years, and
age of Harry = 7k = 7×4 = 28 years.

Hope You Got It ☺☺☺

Answer 2

Step-by-step explanation:

Here are 2 page answer hope it will help you