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Mathematics, 31.05.2021 23:10, kenzie19169
In a class of 20 students, how many conversations must be had so that every student talks to every other student in the class?
A) 190
B) 380
C) 760
D) 6840
![answer](/tpl/images/cats/otvet.png)
Answers: 3
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In a class of 20 students, how many conversations must be had so that every student talks to every o...
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