My age is three times my son's age. In 15 years, I will be twice as his age then. How old am I now?
45
Let son's age be s, so your age is 3s. In 15 years, son is s + 15 and you are 3s + 15. We are told 3s + 15 = 2(s + 15). Expanding gives 3s + 15 = 2s + 30, so s = 15. Your age is 3 x 15 = 45.
About this riddle
Math riddles hide a calculation inside a short story. Pull out the numbers, work out what is being asked, and watch for a trick such as a unit change.
Difficulty: Hard. More like this: Math riddles with answers or try Target 24 for a different kind of puzzle.
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