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2 October, 11:08

There are 18 students in Mr. Alvarez's art class. Throughout the year, every student must pair up with every other student to complete a project. How many projects will be finished?

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  1. 2 October, 11:15
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    If there are 18 students every one of the will pair up with 17 other students throughout the year so the total amount of pairs that can be made is 18x17=306 but since it's not important if student A is paired with student B or student B with student A we should divide the total amount of pairs by two - 306:2=153 so in total there will be 153 projects finished
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