Two siblings share a secret: one is twice the other’s age, but if you subtract their ages, it’s ten years apart. How old is the younger one?
Category: Math · Difficulty: expert
Hint: Set their ages as variables.
Answer
5
Explanation
Let younger be x, then older is 2x; 2x - x = 10 leads to x = 5.
This is a expert math riddle — one of the harder riddles here. The answer is 5.
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