Find the next number in the following series: 126, 127, 131, 140, 156, ?
181
The differences between consecutive terms form a pattern of perfect squares.
127 - 126 = 1 = 1², 131 - 127 = 4 = 2², 140 - 131 = 9 = 3², 156 - 140 = 16 = 4².
So the next difference is 5² = 25, giving 156 + 25 = 181.
Hence, 181.
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A series is given with one term wrong. Select that wrong term from the given alternatives.
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