I am a 2-digit number less than 50. I am divisible by both 3 and 7. The sum of my digits is 3. What number am I?
21
Numbers less than 50 divisible by both 3 and 7 are multiples of 21 (21 and 42). The digits of 21 sum to 2 + 1 = 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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