Percius has a collection of marbles. 40% of them are clear. 20% are black, and the remainder are all the other colors. A friend of his asks if he can take five marbles. On average, how many marbles of other colors will his friend end up getting?
40% of the marbles are of other colors because 100 - 20 - 40 = <<100-20-40=40>>40
The friend will on average get 2 other colored marbles because 5 x .4 = <<5*.4=2>>2
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