Mathematics
28.02.2020 14:22
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You are planning a road trip and there are 15 different cities you would like to

You are planning a road trip and there are 15 different cities you would like to visit. Due to time constraints, you can only visit 4 of the cities. If you do not want to repeat any of the cities, how many different ways can you visit 4 of the 15 cities you are interested in
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Vanesssajohn6294
Vanesssajohn6294
4,6(23 marks)

32760 ways.

Step-by-step explanation:

To solve this, we first determine the number of ways to select 4 countries from 15, we calculate number of ways to visit these 4 places then we multiply.

Selecting number of ways to choose 4 cities from 15 is by using the combination formula, which becomes 15C4

Number of ways to visit these 4 cities = 4!

Hence,total number of ways of visiting these 4 cities = 15C4 * 4! = 32760ways

bheam12
bheam12
4,4(28 marks)

15 P 4=32,760

Step-by-step explanation:

15 P 4=15!(15βˆ’4)!=15!11!=15β‹…14β‹…13β‹…12β‹…11!11!=15β‹…14β‹…13β‹…12=32,760

arodriguez395
arodriguez395
4,5(72 marks)

40

Step-by-step explanation:

Mode represents the highest number/ highest number of quality

In this case 40 Is both

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