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Farmer Ben has only ducks and cows 24 in total. He can’t remember how many of each hehas. He knows that the animals have a total of 66 legs. Assuming that each animal has all legs intact and no extra limbs, how many of each animal does farmer Ben have?

 Aug 16, 2021
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Easy

let d be ducks and c be cows

we can form 2 equations: d + c = 24 and 2d + 4c = 66. using the first equation, we can get 2d + 2c = 48. subtracting the 2 equations gives 2c = 18. so c = 9,  and d = 15

 Aug 16, 2021

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