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19-02-2018
Mathematics

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How many 6 digit numbers can be formed using the digits 2-7 with repetition and without?

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musiclover10045 musiclover10045

19-02-2018

2-7 is 6 numbers

with repetition:

6 * 6 * 6 * 6* 6*6 = 46656 ways

without repetition:

6*5*4*3*2*1 = 720 ways

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