Question

Farhan brother age is three times as old as him. In 12 years time the sum of their ages will be equal to 10 times farhan present age. Find their present age

Answer 1

Answer:

Let the farhans present age = P years

Then farhans brothers age = 3p years

After 12years their ages will be p+12,3p+12

By the problem, p+12+3p+12 =10p

4p+24 = 10p

6p = 24

P = 4

Farhans present age = 4years

His brothers age = 12 years

Answer 2

Answer:

Step-by-step explanation:

Farhan's age = x

Farhan's brother age = 3x

After 12 years

Farhan's age = x + 12

Farhan's brother age = 3x + 12

x + 12 + 3x + 12 = 10x

4x + 24 = 10x

4x - 10x = -24

-6x = -24

x = -24/-6 [- plus - is equal to +]

x = 4

Check ⇒ x + 12 + 3x + 12 = 10x

x = 4

4 + 12 + (3x = 12) + 12 = 10×4

16 + 24 = 40

40 = 40

Hence, the answer is correct.

Farhan's present age = x = 4 years

Farhan's brothers present age = 3x

                                                   = 3 × 4 = 12  years

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