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Ex 7.1, 1 (i) - Chapter 7 Class 11 Permutations and Combinations (Term 2)

Last updated at Jan. 13, 2022 by

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Ex 7.1, 1 How many 3-digit numbers can be formed from the digits 1, 2, 3, 4 and 5 assuming that (i) repetition of the digits is allowed? 3 digit number : Number of 3 digit numbers with repetition = 5 × 5 × 5 = 125

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