If you add my reciprocal to me, the sum is equal to 2.5. What number am I, assuming I am greater than 1?
2
Let the number be x. x + 1/x = 2.5 (or 5/2). If x = 2, then 2 + 1/2 = 2.5.
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: Medium. More like this: Math riddles with answers or try Target 24 for a different kind of puzzle.
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