*He have only 86 cows and dont have birds.
let suppose he have x number of cows and y number of birds. then
2x+ 2y=172 (because each have two eyes)
4x+ 2y= 344 (because cows have 4 legs and birds have 2 legs)
so x=86 and y= 0.*

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A person has certain number of cows and birds, they have 172 eyes and 344 legs. How many cows and birds does he have?

+1 vote

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