Combination and permutation

What is a combination?

• It is an arrangement of elements in which we are not interested in the position occupied by each of them.

• It is the arrangement that counts the elements that are combined in a series

• It is the arrangement that combines numbers

What is the permutation technique?

• It is the branch of mathematics that helps to count numbers.

• It is an arrangement of distinct objects of a set in a certain order.

• It is an arrangement of combinations that can be made with numbers.

Food

Pizza, hamburger, pretzel, hotdog, tacos.

Fruits

Apple, grapes, orange, banana.

How many options the menu could have?

• 9

• 20

• 120

• 24

In a skating competition, 9 participants have reached the final test. if only 3 of them got on the podium to obtain the silver, gold and bronze medal. How many different possibilities do you have for these three places?

• 210

• 504

• 6

• 720

8 desks placed in the first line of the room, we want to determine how many ways we can arrange 5 students

• 6720

• 40

• 56

• 120

How many different 5-letter words can you make with the word BOOKS?

• 120

• 25

• 1

Factorial symbol

• n

• n¡

• n!

• N

From a group of 10 students, we want to select a committee of 3 students. How many different ways can the committee be selected? The previous situation corresponds to:

• Combination

• Permutation

• Factorial number

In a school a championship is held between 4 teams. In how many ways can the teams end up at the end of the championship? The previous situation corresponds to:

• Combination

• Permutation

• Multiplication