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I got that question too. It's very badly worded. When they are asking for 3 students in the class that made the same mistakes, they are not asking for at least 3 people that made 12 mistakes. They're asking for u to prove that there were at least 3 people that made the same mistakes as eachother.

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โˆ™ 2010-09-05 02:58:02
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Q: A class comprises 26 students During a mathematics test one student made 12 mistakes and the rest of the class made less mistakes than he did. Prove that there were at least 3 students in the class wh?
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