A farmer counted the number of cows and chickens by counting heads and legs. If he counted 35 heads and 78 legs, how many cows and how many chickens did he have?

Answer 1

If there are x cows and y chickens, you know (counting heads)

x+y = 35

Now, counting legs, you know:

???

Work that out, then solve the two equations.

Answer 2

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