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Pizza Portions

My friends and I love pizza. Can you help us share these pizzas equally?

Doughnut

How can you cut a doughnut into 8 equal pieces with only three cuts of a knife?

Pies

Grandma found her pie balanced on the scale with two weights and a quarter of a pie. So how heavy was each pie?

Orange Drink

Age 7 to 11
Challenge Level

This is a $750$ ml bottle of concentrated orange squash.

Bottle of orange drink

It is enough to make fifteen $250$ ml glasses of diluted orange drink.

15 cups of orange drink

 

How much water is needed to make $10$ litres of this drink?


The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice.
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NRICH is part of the family of activities in the Millennium Mathematics Project.