Multiple choice

Father's age is $10$ more than twice age of his son. What is the age of son if fathers age is $40$?

  1. $10$
  2. $12$
  3. $15$
  4. $18$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Let son's age be x. Father's age = 2x + 10. Given 2x + 10 = 40, then 2x = 30, so x = 15.

AI explanation

Using the provided formula, the father's age equals twice the son's age plus 10. Given the father is 40 years old, we have the equation 40 equals 2 times the son's age plus 10. Subtracting 10 from both sides gives 30, and dividing by 2 yields the son's age as 15 years.

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