In the following question, select the missing number from the given series.
6, 23, 93, 371, 1485, ?

Correct option is B

Logic: × 4 - 1 and × 4 + 1 alternatively, 
The series is: 6, 23, 93, 371, 1485, ?
First term: 6
Apply the logic: 6×4−1=24−1=23
Second term: 23
Apply the logic: 23×4+1=92+1=93
Third term: 93
Apply the logic: 93×4−1=372−1=371
Fourth term: 371
Apply the logic: 371×4+1=1484+1=1485
Fifth term: 1485
Apply the logic: 1485×4−1=5940−1=5939
Thus, the missing number in the series is 5939.
Correct answer is (b) 5939