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There are 22 students participating in a mathematics competition. How many ways can the students who go first and second be chosen? Your Answer:

Ask by O'Quinn Osborne. in the United States
Feb 25,2025

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Answer

There are 462 ways to choose the first and second students.

Solution

Since the first and second positions are distinct, we are dealing with an ordered selection. For the first position, there are 22 choices, and once that student is chosen, there are 21 remaining students for the second position. Multiplying the two numbers gives the total number of ways: 22 × 21 = 462 So, there are 462 ways to choose the students who go first and second.

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Extra Insights

To choose the students who go first and second, we need to consider that the order matters. We have 22 students, so we can choose the first student in 22 ways. After choosing the first student, there are 21 students left to choose from for the second position. Therefore, the total number of ways to choose the first and second students is 22 × 21 = 462. Now, let's add some extra knowledge! If you think competitions are all about math, think again! The concept of permutations is key here, showing that order is everything. Just imagine if it were a race: the first and second place winners are obviously different people, and their order defines the outcome! Wanna dive deeper? There are cool combinations of math and competition across various fields. From sports tournaments to talent shows, understanding how to calculate potential outcomes can help you strategize and make informed decisions, whether you’re picking a team or planning a project!

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