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In the SuperLottery, three balls are drawn (at random) from ten white balls numbered from 1 to 10, and one SuperBall is drawn (at random) from ten red balls numbered from 11 to 20. When you buy a ticket, you choose three numbers from 1 to 10, and one number from 11 to 20. If the numbers on your ticket match at least two of the white balls or match the red SuperBall, then you win a super prize. What is the probability that you win a super prize?

 Jun 9, 2020
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This question is an interesting AoPS question indeed.

 

This question has been answered multiple times already. I have personally gave hints.

 

Search it up in the search bar.

 Jun 9, 2020

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