How many pigs and how many chickens are there?

Question

In the barnyard is an assortment of chickens and pigs. Counting heads, one finds 13; counting legs, one finds 46. How many pigs and how many chickens are there?

Answer 1

c+p=13

4c + 2p = 46

2c + p = 23

c = 10 chickens

p = 3 pigs

4(10) +2(3) = 46

assuming chickens have 2 legs, and 1 head

and cows have 4 legs and 1 head