Select the number from among the given options that can replace the question mark (?) in the following series.
74, 74, 72, 24, ?, 4
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 20.
Given series: 74, 74, 72, 24, ?, 4
74 ÷ 1 = 74; 74 - 2 = 72; 72 ÷ 3 = 24; 24 - 4 = 20; 20 ÷ 5 = 4