Multiple choice

In how many ways can 5 different books be arranged on a shelf?

  1. 120

  2. 234

  3. 456

  4. 123

  5. 321
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A Correct answer
Explanation

The number of ways to arrange n distinct objects is given by n factorial (n!). For 5 books, this is 5 * 4 * 3 * 2 * 1 = 120.

AI explanation

Arranging 5 different books on a shelf is a permutation of 5 distinct objects. Using the factorial formula for permutations, the total number of possible arrangements is 5!. This calculates to 5 4 3 2 1 = 120.

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