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5 August, 08:05

Select the option fo "?" That continues the pattern in each question.

3, - 6, 12, 4, 20,?

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  1. 5 August, 11:12
    0
    The sixth number in series is 13.

    Step-by-step explanation:

    Given series : 3, - 6, 12, 4, 20,?

    The pattern followed by the series is:

    The first number = 3

    Second number = 3 - 9 = - 6

    Third number = - 6 + (9 * 2) = - 6 + 18 = 12

    Fourth number = 12 - 8 = 4

    Fifth number = 4 + (8 * 2) = 20

    Sixth number = 20 - 7 = 13

    Seventh number = 13 + (7 * 2) = 13 + 14 = 27 and so on.

    So as per the above pattern, the sixth number in the series is 13.
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