this is my problem A pizza place offers 4 different cheeses and 10 different toppings. In how many ways can a pizza be made with 2 cheese and 3 toppings?
660
680
700
720
ok so im supposed to take the two permutations of 4,2 and 10,3 and multiply them to get the answer. When I take the permutation of 4,2 I get 12, but when I take the permutation of 10,3 i get 720. If i multiply those numbers there to big to be an answer, please help me out.
I dont want an answer i want to figure out wat im doing wrong thanks for all of the help.
660
680
700
720
ok so im supposed to take the two permutations of 4,2 and 10,3 and multiply them to get the answer. When I take the permutation of 4,2 I get 12, but when I take the permutation of 10,3 i get 720. If i multiply those numbers there to big to be an answer, please help me out.
I dont want an answer i want to figure out wat im doing wrong thanks for all of the help.
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You want to find all the COMBINATIONS rather than permutations (this means that cheese A with Toppings B and C will be the same as cheese A with toppings C and B-a permutation counts them as two different things)
So work out 4C2 x 10C3 rather than 4P2 x 10P3
So work out 4C2 x 10C3 rather than 4P2 x 10P3
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4c2 * 10c3 =
6 * 120 = 720
6 * 120 = 720