find the number of different 4-letter words that can be formed from the letter of the word number(repitition is not allowed -Permutations and combination
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uber is the right answer
kadianrahul:
nice place
hmm
why r u asking that question
just like that
i will not ask now
ohk
sorry for that ques
ohk no problem
wats ur name
my name is Rahul
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