Bite-sized brain teaser to solve in a minute or less.
The Family Ages
Category: Logical Deduction
A father is 30 years older than his son.
In 5 years, he will be twice his son’s age.
How old is the son now?
Solution
|
Son's age now = x Father's age now = x + 30 In 5 years: x + 30 + 5 = 2(x + 5) x + 35 = 2x + 10 25 = x The son is 25 now. |
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