Question

the ages of Harri and Harry are in the ratio of their ages will be 3:4.find their present ages​

Answer 1

Answer:

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Answer 2

Answer:

$\huge \bf \blue{Question}$

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.

$\huge \bf \blue{Answer}$

Let the ages as x.

So,Hari age will be 5x.

And,Harry age will be 7x.

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

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

This is given to be,3:4.

$\sf{ \frac{4 + 5x}{4 + 7x} = \frac{3}{4} }$

(Cross multiplication method)

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

16+20x=12+21x

20x-21x=12-16

-1x=-4

x=-4/-1

(By cutting signs[-])

x=4

Hence the answer is 4.