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Do-it-in-your-head method: If all animals were chickens there would be 96 legs. There are 26 extra legs, each on a cow, so there are 26 cows and therefore 22 chickens.

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โˆ™ 2010-05-29 15:16:30
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Q: On a farm there are three legged cows and chickens there are a total of 48 heads and 122 legs how many three legged cows are there?
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