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The number of positive integers which can be formed by using any number of digits from 0,1,2,3,4,5 without repetition?

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Permutations & Combinations Admin 3 years 2 Answers 1180 views 0

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    6!*5!*4!*3!*2!*1! Ways

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    You can form

    1 digit positive numbers = 5
    2 digit positive numbers = 25.
    3 digit positive numbers = 100.
    4 digit positive numbers = 300.
    5 digit positive numbers = 600.
    Six digit positive numbers = 600.

    So, total positive numbers,
    = 5+25+100+300+600+600
    = 1630

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