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3.Consider the set S=1,2,3,4,5,6,7,8,9,12,13,14,15,16,17,18,19,23,24,. . . . ,123456789\}, which consists of all positive integers whose digits strictly increase from left to right. This set is finite. What is the median of the set?

 Jul 26, 2020
 #1
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Consider the set S=1,2,3,4,5,6,7,8,9,12,13,14,15,16,17,18,19,23,24,. . . . ,123456789\}, which consists of all positive integers whose digits strictly increase from left to right. This set is finite. What is the median of the set?

 

The median here is given by (123456789 + 1)/2  

 Jul 26, 2020
 #2
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It's not all integers from 1 to 123456789. it's all integers whose digits increase from right to left

Guest Jul 27, 2020

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