If you add me to my own half and my own quarter, the grand total is 28. What number am I?
16
Let x be the number. x + (1/2)x + (1/4)x = 28. Combining terms gives (7/4)x = 28. Multiplying by 4/7 gives x = 16.
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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