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Dropouts

Age 14 to 16 Short Challenge Level:

A language school reports that:

• 75% of students starting a French course have never been to France.
• Of the students who have never been to France, 60% graduate.
• Of the students who have visited France before, 70% graduate.

What percentage of the students who graduate had never been to France?


This problem is adapted from the World Mathematics Championships
You can find more short problems, arranged by curriculum topic, in our short problems collection.