A clock strikes 6 times in 5 seconds. Assuming the intervals between strikes are equal, how many seconds will it take to strike 12 times?
11 seconds
Striking 6 times creates 5 intervals between the strikes. Since 5 intervals take 5 seconds, each interval is 1 second long. Striking 12 times creates 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: Medium. More like this: Math riddles with answers or try Target 24 for a different kind of puzzle.
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