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A small ink cartridge has enough ink to print 600 pages.
Three small ink cartridges can print as many pages as two medium cartridges.
Three medium cartridges can print as many pages as two large cartridges.
How many pages can be printed using a large cartridge?
If you liked this problem, here is an NRICH task that challenges you to use similar mathematical ideas.
Printer Ink
Age 11 to 14
ShortChallenge Level 
A small ink cartridge has enough ink to print 600 pages.
Three small ink cartridges can print as many pages as two medium cartridges.
Three medium cartridges can print as many pages as two large cartridges.
How many pages can be printed using a large cartridge?
If you liked this problem, here is an NRICH task that challenges you to use similar mathematical ideas.
This problem is taken from the UKMT Mathematical Challenges.
You can find more short problems, arranged by curriculum topic, in our short problems collection.
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