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

A 11
B 12
C 10
D 2

User HBG
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1 Answer

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b, 23,25,26
32,35,36
52,53,56
62,63,65
User Blabus
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