Multiple choice

The ratio of the father's age to the son's age is 4: 1. If the product of their ages is 256 years. What will be the ratio of their ages after 10 years?

  1. $4 : 3$
  2. $5 : 3$
  3. $7 : 3$
  4. $3 : 7$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The correct answer is C. Let father's age = 4x and son's age = x. Product is 4x² = 256, so x = 8. Current ages are 32 and 8. After 10 years, ages will be 42 and 18. Ratio = 42:18 = 7:3.

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