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## 'Pumpkin Pie Problem' printed from http://nrich.maths.org/

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:

$10$ dozen eggs

$27$ litres of condensed milk

$480$ tablespoons of sugar

$100$ teaspoons of cinnamon

$140$ cups of pumpkin

Peter looked in the cupboard and found:

$4$ cups of pumpkin

$2$ eggs

$1 \frac{1}{2}$ teaspoons of cinnamon

$\frac{2}{3}$ of a litre of condensed milk

$15$ tablespoons of sugar

Did Peter have enough ingredients to make two pumpkin pies for the party or did he need to buy more?