How many 3 digit numbers are formed by the digits 2,5,7,8 if repetition is allowed?
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Answered by
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heya......
answer is
========
4! = 24
so there are 24 digits.
========
hope it helps ^_^
answer is
========
4! = 24
so there are 24 digits.
========
hope it helps ^_^
lkhv:
hello
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