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17 August, 17:06

A teacher wants to sent 5 students to the library each day. There are 22 students in the class. How many ways can she choose 5 students to go to the library on the first day?

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Answers (2)
  1. 17 August, 17:25
    0
    4 leaving 2 students that haven't went.

    Step-by-step explanation:

    5 times 4 equals 20. 22 minus 20 equals 2.
  2. 17 August, 19:45
    0
    There are 26 334 ways.

    Step-by-step explanation:

    Using Combination Rule because the question say choosing 5 students to go where the arrangement or order does not matters.

    22C5 = 26 334

    *nCr, n is a number of objects and r is the number of spaces/seats

    (Correct me if I am wrong)
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