A pizza place offers 5 different cheeses and 10 different toppings. In how many ways can a pizza be made with 2 cheese and 4 toppings?

2100

1800

1500

1200

Respuesta :

the answer is 2100! making a math tree helps with these types of problems

Answer: 2100

Step-by-step explanation:

Given : A pizza place offers 5 different cheeses and 10 different toppings.

Then, the number of pizzas made with 2 cheese and 4 toppings is given by using combinations.

The combination of n things taken r at a time is given by :-

[tex]^nC_r=\dfrac{n!}{r!(n-r)!}[/tex]

Then, the number of pizzas made with 2 cheese and 4 toppings will be :-

[tex]^5C_2\times^{10}C_4\\\\=\dfrac{5!}{2!(5-2)!}\times\dfrac{10!}{4!(10-4)!}\\\\=10\times210=2100[/tex]

Hence, the number of pizzas made with 2 cheese and 4 toppings =2100