The average of five consecutive integers is 20. What is the smallest of these integers?
18
For any set of consecutive integers, the average is always the exact middle number. Since the average is 20, the five integers are 18, 19, 20, 21, and 22. The smallest is 18.
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: Easy. More like this: Math riddles with answers or try Target 24 for a different kind of puzzle.
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