Get the best answers to your questions with the help of IDNLearn.com's experts. Find the answers you need quickly and accurately with help from our knowledgeable and experienced experts.

From a list of ten books, how many groups of 4 books can be selected

Sagot :

First you have all ten books, but then every time after, you loose one because you can't put the same book in the group twice.

10 * 9 * 8 * 7 = 5040 groups

Answer:

210

Step-by-step explanation:

is the actually answer.