Select the number from among the given options that can replace the question mark (?) in the following series.
300, 152, 80, 48, 40, 52, ?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 90.
Given Series: 300, 152, 80, 48, 40, 52, ?
300 ÷ 2 + 2 = 152; 152 ÷ 2 + 4 = 80; 80 ÷ 2 + 8 = 48; 48 ÷ 2 + 16 = 40; 40 ÷ 2 + 32 = 52; 52 ÷ 2 + 64 = 90