If 5 machines take 5 minutes to make 5 widgets, how many minutes do 100 machines take to make 100 widgets?
5 minutes
Each machine makes 1 widget in 5 minutes. Therefore, running 100 machines simultaneously means they will all finish their single widget in 5 minutes.
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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