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Formula for nPr (Math)? nCr is n!/r!(n-r)! what is nPr? Sign In . to add your answer. 1. Ask a Question. Related Questions. Math help, I dont know what formula to use (nPr or nCr) 10 PTS!!? In permutation: what is the formula of nPr if n<r. Pls ... - read more

What is 'NPR' in math? ChaCha Answer: nPr means out of n population choose r elements and permute them. That is, choose r elements fr... - read more

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