cshep2543 cshep2543
  • 25-09-2017
  • Mathematics
contestada

A science teacher needs to choose 4 students from a class of 20 to go to the library to do some research. How many different groups can he select?

Respuesta :

amkele44owtyji amkele44owtyji
  • 25-09-2017
20\4=5
Since there are 20 people and we want grps of 4
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