A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
581, ?, 693, 749, 805, 861, 917, 973
Show answer & explanation
Correct answer: B
Explanation
581→ ? = +56
693 → 749 = +56
749 → 805 = +56
805 → 861 = +56
861 → 917 = +56
917 → 973 = +56
Therefore, ? = 637