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At a math contest, 57 students are wearing blue shirts, and another 75 students are wearing yellow shirts. The 132 students are assigned into 66 pairs. In exactly 23 of these pairs, both students are wearing blue shirts. In how many pairs are both students wearing yellow shirts?

 Feb 10, 2021
 #1
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*Do NOT answer this question yet! It's a problem on the 2021 amc 10 B!!*

 Feb 10, 2021
 #2
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Just the fact that there's 40 views in 3 hours shows the number of cheaters on the AMC 10B. Very sad.

 Feb 11, 2021

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