Question

SOLVE THE FOLLOWING PROBLEMS.

Answer 1

The answers to the question are:

• 120
• 210
• 38760

How to solve for permutations and combinations

1. The letters of the word track can be arranged in 5! ways

These are  5 x 4 x 3 x 2 x1

= 120

2. The way that the student would be able to select 6 out of 10 questions would be by 10C6

= 210 ways

C)This teacher would be able to make the decision of the prices to the students using =20C6= n!(n-r!r!)

= 38760

Read more on permutations and combinations here:

brainly.com/question/4658834

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