I am thinking of a two-digit number. If you reverse my digits and add the new number to me, the sum is 88. The difference between my two digits is 2. What number am I?
53
Let the number be 10x + y. Reverse is 10y + x. Sum = 11(x + y) = 88, so x + y = 8. The difference x - y = 2. Solving these gives x = 5, y = 3.
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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