Multiple choice

John's father is 4 times as old as him. The sum of their ages is 45 years. Find the age of John's father.

  1. 27 years

  2. 32 years

  3. 36 years

  4. 42 years
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Let John's age be x. Father's age is 4x. x + 4x = 45, so 5x = 45, x = 9. Father's age = 4 * 9 = 36.

AI explanation

Let John's age be x, making his father's age 4x. The sum of their ages is 45, so x + 4x = 45, which simplifies to 5x = 45. Solving for x gives John's age as 9 years. Therefore, his father's age is 4 multiplied by 9, which equals 36 years.

Keep practicing — related questions