Find the missing number in the series.
723, 705, 690, 678, ?
Show answer & explanation
Correct answer: A
Explanation

Hence, ? = 669
SSC GD Constable - 5 May 2026 - Shift 2 • Reasoning • Q10
Find the missing number in the series.
723, 705, 690, 678, ?
Correct answer: A
Explanation

Hence, ? = 669