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Age 14 to 16 Short
Challenge Level
A solid metal cone has radius 6 cm and height 20 cm.
It is melted down to make spheres of diameter 6 cm.
How many spheres can be made?
This problem is adapted from the World Mathematics Championships
You can find more short problems, arranged by curriculum topic, in our short problems collection.
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NRICH is part of the family of activities in the Millennium Mathematics Project.
NRICH is part of the family of activities in the Millennium Mathematics Project.