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The numbers 1, 2, 3, 4, . . . are written starting with 1, spiraling outward
in a counterclockwise direction, as shown below. What is the
sum of the four numbers directly adjacent to the number 100 in
this spiral?

 

.................. 26
13 12 11 10 25
14 3 2 9 24
15 4 1 8 23
16 5 6 7 22
17 18 19 20 21

 Oct 31, 2020
 #1
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The sum of the four numbers is 197.

 Oct 31, 2020

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