Question

a mother is 30 yrs older than her son. in 12 years , she will be three times of her son's age. find their present ages​

Answer 1

An answer:

CHILD :- 18

Step-by-step explanation:

30-12 =18

18×3=54

Answer 2

Answer:

Present age of:-

SON = 3 years.

MOTHER = 33 years.

Step-by-step explanation:

Let the present age of the son be y years.

∵ Mother is 30 years older than her son,

:. The present age of mother = (y + 30) years.

:. After 12 years,

   Age of son = (y + 12) years.

   Age of mother = ((y + 30) + 12) years.

                            = (y  + 42) years.

According to the question,

(y + 42) = 3 X (y + 12)

=> y + 42 = 3y + 36

=> 42 - 36 = 3y - y

=> 2y = 6

=> y = $\frac{6}{2}$

=> y = 3.

:. The present age of son = 3 years

The present age of mother = (3 + 30) = 33 years.

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