What will come in place of the question mark (?) in the following series? 6, 17, ?, 28, -16, 39

18
-18
5
-5

Correct answer: -5

Solution

The series follows a pattern of alternating operations with changing increments. Working through the terms gives the missing number as -5. This fits the progression leading to 28, -16, and 39.

Related IBPS PO General Awareness questions

Below are series I and II such that the logic followed in series II is the same as the logic followed in series I. Series I: 60, 120, 24, 48, 9.6, 19.2 Series II: 100, W, X, Y, Z, 32 If a series III is formed that follows the same logic as series I and its first term is \(W - X\), find the third term of series III.
What should come in place of the question mark (?)? 2 × 2 = 2 = 2 = ?
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