A clock strikes 6 times in 5 seconds. How many seconds does it take for the same clock to strike 12 times, assuming the intervals between strikes are equal?
11 seconds
6 strikes mean there are 5 intervals between them. If 5 intervals take 5 seconds, each interval is 1 second. 12 strikes mean 11 intervals, which takes 11 seconds.
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: Hard. More like this: Math riddles with answers or try Target 24 for a different kind of puzzle.
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