Homework SourseHow many ways can Karen choose 3 pizza toppings from a menu
How many ways can Karen choose 3 pizza toppings from a menu of 8 toppings if each topping can only be chosen once
How many ways can Karen choose 3 pizza toppings from a menu of 8 toppings if each topping can only be chosen once
Solution
this is combination problem
no of ways of choosing r items from n items = nCr
so
no of ways of choosing 3 toppings from 8 toppings
= 8C3
= 8!/(3! *5!)
= 56 ways
