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Find the missing series 1,2,3,2,6,12,2,10,30,?

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Find the missing series 1,2,3,2,6,12,2,10,30,?
posted Aug 14, 2017 by Jok3r

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1 Answer

0 votes

1, 2, 3, 2, 6, 12, 2, 10, 30, -755
1, 1, -1, 4, 6, -10, 8, 20, -785 (1st difference)
0, -2, 5, 2, -16, 18, 12, -805 (2nddifference)
-2, 7, -3, -18, 34, -6, -817 (3rd difference)
9, -10, -15, 52, -40, -811 (4th difference)
-19, -5, 67, -92, -771 (5th difference)
14, 72, -159, -679 (6th difference)
58, -231, -520 (7th difference)
-289, -289 (8th difference)

answer Feb 8 by Yasin Hossain Siinan
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