Question

what should come next in the series 3 11 31 57 91 133

Answer 1

There is little mistake in question, it is 13 not 11
now,
(1)² + 2= 3
(3)² +4 = 13
(5)² +6 = 31
(7)² +8 =57
(9)² +10 =91
(11)² +12 = 133
so, (13)² + 14 =183

hope you understand the sequence :)

Answer 2

as i told u ..it will not be 11 but 13: the answer will be:
1² + 2 = 1+2 = 3
3² +4 = 9+4 = 13
5² +6 = 25+6 = 31
7² +8 = 49+8 = 57
9² +10 = 81+10 = 91
11² +12 = 121+12 = 133
13² + 14 = 169+14 = 183
hope it helps
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