Correct option is C
Given:
591 592 596 605 621 ?
Logic:
To find the next number, observe the differences between consecutive terms:
592 − 591 = 1
596 − 592 = 4
605 − 596 = 9
621 − 605 = 16
The differences are: 1, 4, 9, 16, which are perfect squares (1², 2², 3², 4²).
Now, following this pattern, the next difference should be 5² = 25.
Explanation:
621 + 25 = 646
Final Answer:
646
Final Correct Option:
(C) 646