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mr Goodwill [35]
3 years ago
13

A student is selecting 5 different geography books, 4 different chemistry books, and one of 7 different science books. In how ma

ny different ways can a student select them?
Mathematics
1 answer:
malfutka [58]3 years ago
5 0

There would be 5184 ways in which each subject books can be selected.

<u>Explanation:</u>

Number of geography books = 5

Number of chemistry books = 4

Number of Science books = 7

Different ways of selecting geography books = 5!

                                                                            = 5 X 4 X 3 X 2 X 1

                                                                            = 120

Different ways of selecting chemistry books = 4!

                                                                          = 4 X 3 X 2 X 1

                                                                          = 24

Different ways of selecting Science books = 7!

                                                                       = 7 X 6 X 5 X 4 X 3 X 2 X 1

                                                                       = 5040

Total different possible ways they can select them = 120 + 24 + 5040

                                                                                     = 5184

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