SOLUTION: There are 3 red balls and some black and some green balls in a bowl. If the probability of randomly picked up ball being red is 1/5. how many non-red balls are there in the bowl?

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Question 1044067: There are 3 red balls and some black and some green balls in a bowl. If the probability of randomly picked up ball being red is 1/5. how many non-red balls are there in the bowl?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
From the probability,
1%2F5=3%2FN%5Btot%5D
N%5Btot%5D=15
Since there are 15 total balls and 3 red balls, there are,
15-3=12 non-red balls.