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0549 - Pick20

Pick20 [OO #549] So, at the Kentucky Derby, there was an offer out of a prize of $5 million if anyone could pick the 20 horses entered in order of finish. We asked our Investment Guru (the Revered one, or R.I.G.) to figure it out, and he says the chances are 20 times 19 times 18 times 17 ... or 20 factorial , written 20! On our HP pocket calculator that seems to be 2,432 followed by 15 zeroes. Don't spend your winnings.

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