Question : Directions: Select the number from among the given options that can replace the question mark (?) in the following series.
632, 637, 644, 653, 664, ?
Option 1: 677
Option 2: 687
Option 3: 679
Option 4: 681
Correct Answer: 677
Solution :
Given:
632, 637, 644, 653, 664, ?
Add consecutive odd numbers to the previous term to obtain the next term.
632 + 5 = 637; 637 + 7 = 644; 644 + 9 = 653; 653 + 11 = 664; 664 + 13 = 677
So, 677 is the required term in the given series. Hence, the first option is correct.
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