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

Answer:

let the present age of rahul be x years and haroon be y years

x/y=5/7

x=5/7y

4 yrs later

rahul age =x+4

haroon age =y+4

(x+4)+(y+4)=56

x+y+8=56

x+y=56-8=48

5/7y+y=48

5y+7y/7=48

12y=7×48/12=28

x=5/7y=5/7×28=20

hence present age of rahul=20and haroon will be 28 years

hope it will be helpful

Answer 2

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The age of Rahul and Haroon are in the ratio 5:7. Four years later the sum of ages will be 56 years. What are their present ages?

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Let the current age of Rahul and Haroon be 5x and 7x respectively

Four years later their ages become 5x + 4 and 7x + 4 respectively.

According to the question,

5x + 4 +7x + 4 = 56

or 12x + 8 = 56

Transposing 8 to the RHS we get,

12x = 48

Dividing both sides by 12 gives,

x = 48/12 = 4

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Thus current age of Rahul = 5*4 = 20

Haroon = 7*4 = 28

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