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22 August, 02:22

How many 2 digit numbers can be formed using 9,2,6,4,8,5,7 without repetition

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  1. 22 August, 05:34
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    There are 7 numbers.

    Each number can be paired with the remaining 6 numbers.

    7 x 6 = 42 different two digit numbers can be made.
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