SSE JE Electrical Engineering 24 March 2021 Shift 1 Paper

Question : 33 of 200

Marks: +1, -0

Which number will replace the question mark (?) in the following series.
11, 13, 10, 15, 8, 19, 6, 23, ?

Solution:

Addition and Subtraction of consecutive Prime Numbers.

\table 11→↖{+2}13→↖{-3}10→↖{+5}15→↖{-7}8→↖{+11}19→↖{-13}6→↖{+17}23→↖{-19}4

Hence, "4" is the correct answer.

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