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22 March, 06:43

8) You are given the following digits to create 3-digit numbers:

2, 3, 6, 7, 8, 9.

a) How many 3-digit numbers can be created if a digit can be

used more than 1 time

b) How many digits can be created if you may NOT use a digit

more than once?

+4
Answers (1)
  1. 22 March, 09:56
    0
    a) 216

    b) 120

    Step-by-step explanation:

    a) 6*6*6 = 216

    (6 options for each position)

    b) 6C3 * 3! = 120
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