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In the SuperLottery, three balls are drawn (at random) from ten white balls numbered from  to , and one SuperBall is drawn (at random) from ten red balls numbered from  to . When you buy a ticket, you choose three numbers from  to  and one number from  to .

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?

 

(So far I tried the answers 1/3,1/7200, 317/2500, 1/567, 229/400,1/92, but none of them are correct.) 

 Jan 20, 2021
 #1
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The probability is 1/C(20,3) = 1/1140.

 Jan 21, 2021
 #2
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That's wrong :/

Guest Jan 21, 2021

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