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math

I just did this Quiz and I dont understand how I got this wrong. The question is

How many 2-digit numbers can be formed using the only digits 2,3,5, and 6, if the digits are not repeated within a number.

A.11
B.12
C.10
D.2

I picked 10 but the score sheet says its 12. How is that possible?

  1. 👍
  2. 👎
  3. 👁
Charlene

  1. 23
    32
    25
    52
    26
    62
    35
    53
    36
    63
    56
    65

    1. 👍
    2. 👎
    👤
    Ms. Sue

  2. 4 choices for the 1st digit, leaving 3 choices for the 2nd digit.

    What is 4x3 ??

    1. 👍
    2. 👎
    Reiny

  4. 12

    1. 👍
    2. 👎
    Charlene

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