If two painters can paint two identical walls in two hours, how many painters are needed to paint 18 identical walls in 18 hours?
2
Two painters take 2 hours to paint 2 walls, meaning 2 painters complete 1 wall per hour. In 18 hours, those same 2 painters can complete 18 walls.
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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