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Study Stuff for MCA Examinations - NIMCET
Study Stuff for MCA Examinations - NIMCET
Previous Year Question (PYQs)
How many five-digit numbers can be made from the digits 1 to 7 if repetition is allowed?
Solution
Since repetition is allowed and digits are 1–7, for each of 5 positions there are 7 choices. Total numbers $= 7^5 = 16807.$Online Test Series, Information About Examination,
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