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7. Permutations and Combinations
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Q41 of 64 Page 122

Fill in the Blanks

If nPr = 840, nCr = 35, then r = ______.

Formula:-
(i)nPr


(ii) nCr


Given:-


nPr = 840,


nCr = 35


nPr


nCr


Diving both nPrand nCr







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Questions · 64
7. Permutations and Combinations
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