A mother is 30 years older than her twin daughters. In 2 years her age will be three times the combined ages of the twins. How old are the twins right now? Answer:

4 years

Explanation:

Let x be the age (in years) of each daughters,

∵ Mother is 30 years older than her daughters,

⇒ Age of the mother = x + 30

Now, after 2 years,

The age of each daughter = x + 2,

And, the age of the mother = x + 30 + 2 = (x + 32) years,

According to the question,

3 (x+2+x+2) = x + 32

3 (2x+4) = x + 32

6x + 12 = x + 32

5x = 20

⇒ x = 4

Hence, each of the daughters is 4 years old.