alchew3288 alchew3288
  • 10-10-2017
  • Mathematics
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How many different 4-digit sequences can be formed using the digits 0, 1,..., 6 if repetition of digits is allowed

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musiclover10045
musiclover10045 musiclover10045
  • 10-10-2017

0 through 6 is 7 total numbers

 1st digit can be 0-6 = 7 numbers

 2nd digit can be 0-6 = 7 numbers

3rd digit can be 0-6 = 7 numbers

4th digit can be 0-6 = 7 numbers

 7 * 7 *7 *7 = 2401 different combinations


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lunam1 lunam1
  • 19-11-2020

Answer:D.2401

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