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Bert has 10 books and he wants to give 2 of these books to his sister. How many different gifts are possible?

Sagot :

There are 45 different gifts possible. The no of combination is found in the given solution.

What are permutations and combinations?

A permutation is a process of putting items or pieces in a certain order. Combinations are a method of picking things or pieces from a set of objects or collections when the order of the objects is irrelevant.

The different gifts are possibly obtained by the combinations;

The formula for the combination is found as;

[tex]\rm nC_r \\\\ 10C_2 \\\\ 45[/tex]

Hence, there are 45 different gifts possible.

To learn more about permutations and combinations, refer to https://brainly.com/question/11958814.

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