Question

the ages of Rahul and haroon 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

rahul =20 & haroon =28

let Rahul age 5x and haroon age 7x

after four years rahul age =5x+4 & haroon age =7x+4

5x+4+7x+4=56

12x=48

x=4

5x=20

7x=28

Answer 2

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“ let's try to Solve it”

Let the age of Rahul be 5x and the age of Haroon be 7x, given that their ages are in the 5:7 ratio.

The sum of their ages after 4 years will be 56 years.

⇒ (5x+4) + (7x+4) = 56

⇒ 5x + 7x + 4 + 4 = 56

⇒ 12x + 8 = 56

⇒ 12x = 56 - 8

⇒ 12x = 48

⇒ x = 48/12 = 4

⇒ age of Rahul = 5x = 5(4) = 20 years

⇒ age of Haroon = 7x = 7(4) = 28 years

Thus, the present ages of Rahul and Haroon are 20 years and 28 years respectively.

i hope it's Help you:)

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