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Class 11 Mathematics Permutations and Combinations Fundamental principle of countingExpert

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From (10) books, one book is to be placed on each of (3) different shelves. No book can be placed on two shelves. How many ways are possible?

Answer and explanation

Correct answer: (10 \times 9 \times 8=720)

The shelves are different, so the first, second, and third shelves have (10,9,8) choices. For distinct positions, order matters.

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Counting Books Shelves Fundamental Principle Of Counting Permutations And Combinations Mathematics Class 11 Mcq

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