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What is the next number - 1, -2, 4, -6, 7, -10, 10, -14, ??

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What is the next number - 1, -2, 4, -6, 7, -10, 10, -14, ??
posted Aug 12, 2016 by anonymous

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2 Answers

+2 votes

1 -3= -2
-2+6= 4
4 - 10= -6
-6 + 13 = 7
7 - 17 = -10
-10 + 20 = 10
10 - 24 = -14
Now if we look at the sequence
3 6 10 13 17 20 24 , the next is 27
Therefore -14 + 27 = 13
The answer is 13

answer Aug 15, 2016 by anonymous
+1 vote

13 is the answer.

answer Aug 12, 2016 by Bharti Rawat
What is the logic?
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