Business mathematics | 2nd semester | Ex 4.5 & 4.6 doubts | Permutations & combination
࿗ जय श्री गणेशाय नम:
Permutations & combination | Bcom 2nd sem Mathematics Series | Chapter 4 Ex 4.5 & 4.6 doubts | Kurukshetra university kuk
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Questions solved in this video ⤵️
Q. If n+1Cr+1 : nCr : n-1Cr-1 = 11:6:3 , find n and r.
Q. (i) If 4P2 = n 4C2; find n.
(ii) If nPr = 1320, nCr = 220, find n and r.
Q. if nPr = nPr+1 and nCr = nCr-1 , find the value of n and r
Q. prove that r. nCr = n. n-1Cr-1
Q. In how many ways can we select a cricket eleven from 17 players in which 5 players can bowl Each team must include 2 bowlers.
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