A farmer looks out at his field of chickens and cows. Counting heads, he sees 30. Counting legs, he sees 86. How many cows are in the field?
13 cows
If all 30 animals were chickens (2 legs each), there would be 60 legs. The remaining 26 legs (86 - 60) must be pairs of extra legs for cows. 26 / 2 = 13 cows.
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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