What should come in place of ? in the following series?
117, 98, 80, 64, ?, 42
Detailed Explanation:
Pattern: The series decreases with differences that increase by +1 each time.
Differences: 117 → 98 is −19, 98 → 80 is −18, 80 → 64 is −16.
Next difference: Pattern shows increments of +1, +2, +3, so next is −16 + 3 = −13.
Missing term: 64 − 13 = 51.
Verification: 51 → 42 is −9 (increase of +4 from −13), confirming the pattern.
Question 2 of 8 Number System
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