Peter, the pumpkin eater, wanted to make two pies for a party.
His mother, a professional pie maker, had a recipe for him to use.
However, she always made $80$ pies at a time. She used:
![[copyright Microsoft]](./fig3.gif)
Peter looked in the cupboard and found:
$4$ cups of pumpkinDid Peter have enough ingredients to make two pumpkin pies for the party or did he need to buy more?