10, 11, 12, 13, 14, 15, 16, 17, 20, 22, 24, ___ , 100, 121, 10000
What's the missing number in this sequence?
The missing number is 31.
10 = 1616
11 = 1615
12 = 1614
13 = 1613
14 = 1612
15 = 1611
16 = 1610
17 = 169
20 = 168
22 = 167
24 = 166
31 = 165 <==
100 = 164
121 = 163
10000 = 162
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Posted by Dej Mar
on 2008-07-14 09:34:00 |