24: Santa's big sleigh [****]
Dec 25, 2016 - 3:59
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20: The middle digit [**]
How many three-digit numbers satisfy the property that the middle digit is the average of the first and the last digits? // Spiciness: ** out of ****
About This Episode
20: The middle digit [**] is an episode from Wes Carroll's Puzzler by Wes Carroll. How many three-digit numbers satisfy the property that the middle digit is the average of the first and the last digits? // Spiciness: ** out of **** The epi...
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This episode belongs to Wes Carroll's Puzzler.
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Episode Details
Published Aug 28, 2016, 2:51 long, audio available.
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