Bill was eight times the age of his son - Math Riddle
38.Math Riddles
Eight years ago, Bill was eight times the age of his son Bill Jr. Today, if you add their ages together, they add up to 52. How old are Bill and his son?
Bill is 40, and Bill Jr. is 12. Bill is 40, and Bill Jr. is 12.
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Bill is 40, and Bill Jr. is 12.
Explanation : Eight years ago, Bill Jr. was x years therefore Bill was 8x Today (x+8) +(8x+8) = 52 x+8 + 8x+8 = 52 9x + 16 = 52 9x = 52–16 9x = 36 Therefore x = 4 Bill Jr. is x + 8 = 12 4 + 8 = 12 years old Bill is 8x + 8 = 32 + 8 32 + 8 = 40 years old Therefore 12 + 40 = 52 years.
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