John has a bucket with 300 glass marbles in it. 100 of the marbles have 'spots,' the rest of the marbles are one of the solid

Question

John has a bucket with 300 glass marbles in it. 100 of the marbles have 'spots,' the rest of the marbles are one of the solid colors blue or green or black or white. 
If John draws one marble at random out of his bucket, what is the probability he DOES NOT gets a 'spots' marble?

Kunduz · Accepted Answer

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