Question

The present age of father is 3 times the age of son.
After three years the age of father will be 7 years more than twice the age of son. The present age of son is______years.
(a)8. (b)9
(c)10. (d)11

Answer 1

Answer:

(c) 10 years

Step-by-step explanation:

Let the present age of the son be x.

So, the present age of the father = 3x

After three years,

Age of the son = x+3

Age of the father = 3x+3

Now, according to the question,

3x+3 = 2(x+3)+7

=> 3x+3 = 2x + 6 +7

=> 3x+3 = 2x+ 13

=> 3x- 2x = 13-3

=> x = 10

So, the present age of the son = x = 10 years.

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