Select the number from among the given options that can replace the question mark (?) in the following series.
864, 432, 216, 108,?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 54.
The series follows this pattern:
864 ÷ 2 = 432; 432 ÷ 2 = 216; 216 ÷ 2 = 108; 108 ÷ 2 = 54