Question

rahul and haroon ages are in ratio 5:7 after 4 years the sum their ages is 56 find their present age ​

Answer 1

Answer:

Step-by-step explanation:

let the age of rahul be 5x and haroon be 7x.

after 4 years the sum of their ages  = 56

                     then,        (5x+4) + (7x+4) = 56

                                    12x +8 = 56

                                  12x = 56 - 8

                                    12x = 48

                                    x = 48/12

                                    x = 4

then age of rahul =  5x =   5x4 = 20 years.

            age of haroon = 7x  =  7x4 = 28 years.

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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