Difference between revisions of "2021 AMC 10B Problems/Problem 4"

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−	~~At a math contest, <math>57<~~/math> students are wearing blue shirts, and another <math>75</math> students are wearing yellow shirts. The 132 students are assigned into <math>66</math> pairs. In exactly <math>23</math> of these pairs, both students are wearing blue shirts. In how many pairs are both students wearing yellow shirts?	+	#redirect [[2021 AMC 12B Problems/Problem 2]]
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−	~~<math>\textbf{(A)} ~23 \qquad\textbf{(B)} ~32 \qquad\textbf{(C)} ~37 \qquad\textbf{(D)} ~41 \qquad\textbf{(E)} ~64</math>~~