Permutation & Combination
Permutation & Combination. Permutation. No. of ways of arranging 4 letters a,b,c and d. Permutation. No. of ways of arranging 4 letters a,b,c and d. a. Permutation & Combination. b. 4. 4 ways to put into first place. c. 4 P 1 = 4. d. d. a. Permutation & Combination. b. 4.
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