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Math Question
SolicShooter
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Joined: 2010-01
#1
2013-02-21, 01:39 PM
21 girls and 21 boys participate in a math competition. The results show that: Each contestant solved at most six problems, and for each pair of a girl and a boy, there was at least one problem that they both solved.

Prove that there is a problem that was solved by at least three girls and at least three boys.

I'm just stumped... help please Smile?
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Messages In This Thread
Math Question - by SolicShooter - 2013-02-21, 01:39 PM
Math Question - by happylight - 2013-02-21, 08:15 PM
Math Question - by Kalovale - 2013-02-24, 09:02 PM
Math Question - by happylight - 2013-02-25, 12:46 AM
Math Question - by Kalovale - 2013-02-25, 01:08 AM
Math Question - by Locked - 2013-02-25, 01:11 AM
Math Question - by happylight - 2013-02-25, 01:49 AM
Math Question - by Kalovale - 2013-02-25, 03:19 AM
Math Question - by Stereo - 2013-02-26, 04:37 PM
Math Question - by Draven - 2013-03-02, 03:34 AM

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