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If the cows were normal there would be a total of 4 x 94 ie 376 legs. There is a deficit of 19 legs so there are 19 cows leaving 75 horses. Check: 75 x 4 + 19 x 3 = 300 + 57 QED

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Q: There are horses and three legged cows there are a total of 94 heads and 357 legs how many horses?
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