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In a library there are 4 books ondierent subjects lying on a tableone over the other. In how manyways can they be arranged oneover the other?

Question

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Solution

The problem you're describing is a permutation problem. Permutations refer to the arrangement of items in a specific order.

Here's how you solve it:

Step 1: Identify the number of items to arrange. In this case, it's 4 books.

Step 2: Use the formula for permutations, which is n!, where n is the number of items and "!" denotes factorial. Factorial means multiplying all positive integers from our chosen number down to 1.

Step 3: Calculate the factorial. For 4 books, it's 4! = 432*1 = 24.

So, there are 24 different ways to arrange the 4 books one over the other.

This problem has been solved

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