An old grandfather clock chimes once at 1:00, twice at 2:00, three times at 3:00, and so on. How many total chimes will ring out between 1:00 AM and 12:00 PM (noon) inclusive?
78 chimes
The sum of integers from 1 through 12 is calculated as (12 * 13) / 2 = 78.
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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