Robby doesn't like the color brown and will not eat the brown M&M's. On his first bag, he sets aside 9 brown M&M's. On the second bag, he sets aside 12. On his third & fourth bag, there are 8 brown M&M's that he doesn't eat. On his fifth bag, there are only 3 brown M&M's that he doesn't eat. What's the average number of brown M&M's in a bag? Let's think first. Chain of thought:
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Out of 5 bags, he had 9 + 12 + 8 + 8 + 3 = 40 brown M&M's. He ate 5 bags so the average number of brown M&M's per bag was 40 / 5 = 8 brown M&M's.
Therefore, the answer is 8.
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