Multiple choice

The age of the mother is 30 years more than his son's age. Ten years hence the mother's age will become three times the son's age. What is the age of son?

  1. 6 years

  2. 8 years

  3. 7 years

  4. 4 years

  5. 5 years
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Let the son's current age be x years. Then the mother's current age is x + 30 years. After 10 years, the mother will be x + 40 and the son will be x + 10. Setting up the equation: x + 40 = 3(x + 10), which gives x + 40 = 3x + 30. Solving: 10 = 2x, so x = 5 years.

Keep practicing — related questions