During the Computer Daze special promotion, a customer purchasing a computer and printer is given a choice of seven free softwar

Question

3 years ago

7

e packages. There are 10 different software packages from which to select. How many different groups of software packages can be selected?

1 answer:

LiRa [457] · Answer 1 · 2021-11-09T18:46:00+03:00

LiRa [457]3 years ago

4 0

Answer:

120 ways

Step-by-step explanation:

To solve the question above, we use combination formula:

Where ;

nCr = n! / (n-r)! r!

10C7 = 10! / (10 - 7)! 7!

10C7 = 10! / 3! 7!

10C7 = (10 * 9 * 8) / 3 * 2 * 1

10C7 = 720 / 6

= 120 ways