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# Climbing Ropes

Climbers use ropes of different diameters.

A 50 m rope which is 9 mm in diameter weighs about 2.7kg.

Roughly what would a 100 m rope of the same material, but of diameter 11 mm weigh?

*This problem is taken from the World Mathematics Championships*## You may also like

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Age 14 to 16

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Climbers use ropes of different diameters.

A 50 m rope which is 9 mm in diameter weighs about 2.7kg.

Roughly what would a 100 m rope of the same material, but of diameter 11 mm weigh?

You can find more short problems, arranged by curriculum topic, in our short problems collection.

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