SOLUTION: A 20-sided icosahedron is thrown 6 times. It has 7 red, 3 blue, 2 purple, 2 brown, 2 black, 2 green faces. What is the probability that 5 red and 2 blue faces will appear? But what

Algebra ->  Permutations -> SOLUTION: A 20-sided icosahedron is thrown 6 times. It has 7 red, 3 blue, 2 purple, 2 brown, 2 black, 2 green faces. What is the probability that 5 red and 2 blue faces will appear? But what      Log On


   



Question 1151929: A 20-sided icosahedron is thrown 6 times. It has 7 red, 3 blue, 2 purple, 2 brown, 2 black, 2 green faces. What is the probability that 5 red and 2 blue faces will appear? But what if all the faces have the same color?
Answer by ikleyn(52778) About Me  (Show Source):
You can put this solution on YOUR website!
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The sum  7 + 3 + 2 + 2 + 2 + 2  is only  18,  not  20;  so what color are two remaining faces ?