Select the number from among the given options that can replace the question mark (?) in the following series.
21, 22, 44, 47, 188,?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 193.
The series follows this pattern:
21 + 1 = 22, 22 × 2 = 44, 44 + 3 = 47, 47 × 4 = 188, 188 + 5 = 193