SOLUTION: find the number of students needed to guarantee that four of them belogn to the same level out of level 1,level 2 and level 3.
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-> SOLUTION: find the number of students needed to guarantee that four of them belogn to the same level out of level 1,level 2 and level 3.
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Question 462689: find the number of students needed to guarantee that four of them belogn to the same level out of level 1,level 2 and level 3. Answer by richard1234(7193) (Show Source):
You can put this solution on YOUR website! 10. 9 students does not guarantee this because there could be three in each of the three levels. 10 will guarantee four students, by the Pigeonhole principle.
