Exams › IBPS PO › Quantitative Aptitude
What should come in place of the question mark (?) in the following number series? 50, 54, 45, 61, ?, 72
- 46
- 36
- 106
- 26
Correct answer: 36
Solution
The series can be read as two interleaved sequences: 50, 45, ? and 54, 61, 72. The first sequence decreases by 5 each time, so the missing term is 36.
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