SSE JE Electrical Engineering 24 March 2021 Shift 1 Paper

Question : 21 of 200

Marks: +1, -0

Select the number from among the given options that can replace the question mark (?) in the following series.
20, 21, 42, 14, 18, ?, 15

Solution:

The pattern follows here is;

20→↖{+1}21→↖{×2}42→↖{÷3}14→↖{+4}18→↖{×5}90→↖{÷6}15

Hence, "90" is the correct answer.

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