Question

A farmer has both pigs and chickens on his farm. there are 78 feet and 27 heads. how many pigs and how many chickens are there?

Answer 1

let p the number of pigs
and c: number of chickens


p + c = 27 ( there is one head for each )

4 p + 2c = 78 ( 4 feet for pigs and 2 for chickens)



p= 12 c= 15