Question

Please answer the following question:

a) In how many ways can a committee of 3 people be selected from a group of 10 people? b) In how many ways (different arrangements) can 8 books be placed on a shelf? c) On an ice cream menu, there are 5 choices of ice cream flavors, 4 choices of toppings and 2 choices of syrups. In how many different ways can the ice cream be ordered, if each order must include one ice cream flavor, a topping and one kind of syrup?

Answer 1

solution :- a) ways to select committee of 3 people 120 (9) 10! 3). ~ 7). ways b ) 8 books to arrang coays 8 4 1 3 2 6 BT J First book 2nd goh book 3rd 8x7X 6X5X 4 X 3x2x) = 8 40320 9 ways to different order E5X4 X 2 40