Multiple choice general knowledge math & puzzles Identify the missing number in the series…9, 18, 72, 432, ?... 2700 2332 3456 3600 Reveal answer Fill a bubble to check yourself C Correct answer Explanation To solve this question, the user needs to identify the pattern in the given series of numbers. The first number is 9, and each subsequent number is obtained by multiplying the previous number by a multiple of 2. 9 x 2 = 18 18 x 4 = 72 72 x 6 = 432 432 x 8 = 3456 Therefore, the missing number in the series is obtained by multiplying 432 by 8, which equals 3456. So, the Answer is: C. 3456