There are 12 cans in the refrigerator. 8 of them are red and 4 of them are blue. In how many ways we can remove 8 cans so that at least one red and at least one blue cans to remain the refrigerator.  Choose the correct choice from the following options: A) 460 B) 490 C) 493 D) 455 E) 424
Ways to pick 4 cans so that at least one red and at least one blue cans to remain the refrigerator =   total ways to pick 4 can out of 12 - ways to pick 4 red out of 8 red - ways to pick 4 blue out of 4 blue   12C4âˆ’8C4âˆ’4C4=495âˆ’70âˆ’1=424   ANSW424R:424
<result>E</result>
There are 12 cans in the refrigerator. 8 of them are red and 4 of them are blue. In how many ways we can remove 8 cans so that at least one red and at least one blue cans to remain the refrigerator.