9
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This chain of numbers is making confused.Help to find the answer with explanation.

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    $\begingroup$ Sorry! my mistake there was 6 in the end the solution given by @ibn-e-battota satisfies for 6 in the end. $\endgroup$ Commented Dec 9, 2018 at 15:50

1 Answer 1

7
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Answer is

16.

Explanation:

Moving forward ,around alternate segments in the chain , one sequence decreases by 1,2,3 and 4 each time, while the other increases by 2,3,4 and 5

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    $\begingroup$ @Ibnebatoota Your solution doesn't work for the elements 10 and 9. $\endgroup$
    – rhsquared
    Commented Dec 9, 2018 at 15:34
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    $\begingroup$ Question posted have mistake there should be 6 not 9 in question. My solution satisfies 6. $\endgroup$ Commented Dec 9, 2018 at 15:49

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