The age of hari and harry are in ratio

Asked by admin @ 20/08/2021 in Math viewed by 234 People

the ages of Hari and Harry are in the ratio of 5:7. Four years from now the ratio of their ages will be 3:4. Find their present ages

Answered by admin @ 20/08/2021

Hey mate..
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The ans to your question is...
Let the common ratio between their ages be x. Therefore, Hari’s age and Harry’s age will be 5x years and 7x years respectively and four years later, their ages will be (5x + 4) years and (7x + 4) years respectively.

According to the situation given in the question,

$\frac{5x + 4}{7x + 4} = \frac{3}{4 } \\ \\ = > 4(5x + 4) = 3(7x + 4) \\ = > x = 4$
Hari’s age = 5x years = (5 × 4) years = 20 years

Harry’s age = 7x years = (7 × 4) years = 28 years

Therefore, Hari’s age and Harry’s age are 20 years and 28 years respectively.

Hope it helps...!!!

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