No.
You are simply choosing 4 of 15 things, and since the order of placing the order does not change, it is simply C(15,4) to order the pizza.
Now for the size, you will choose 1 of the 5 sizes
or C(5,1) = 5
so number of ways = C(15,4) x C(5,1)
= (1365)(5)
= 6825
There are 15 available toppings and 5 different pizza sizes in a pizza restaurant. If Maria wants to order a 4-topping pizza, how many different pizzas could she order?
My solution: 15C4/5!
4 topping 15C4=1365 Is this correct?
Thank you.
2 answers
Thank you so much for your help.
3 answers