Select the number from among the given options that can replace the question mark (?) in the following series.
3, 23, 33, 43, 58, 88, ?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 163.
Given series: 3, 23, 33, 43, 58, 88, ?
3 + 20 = 23
23 + (20 × 0.5) = 23 + 10 = 33
33 + (10 × 1) = 33 + 10 = 43
43 + (10 × 1.5) = 43 + 15 = 58
58 + (15 × 2) = 58 + 30 = 88
88 + (30 × 2.5) = 88 + 75 = 163