Multiple choice

A series is given, with one term missing choose the correct alternative from the given ones that will complete the series. $8, 18, 57, 232, ?$

  1. 1135

  2. 1165

  3. 442

  4. 1065

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This follows a pattern of: multiply by increasing consecutive integers starting from 2, then add consecutive integers starting from 2. 8×2+2=18, 18×3+3=57, 57×4+4=232. Following this pattern: 232×5+5=1165. The multiplier increases by 1 each time (2, 3, 4, 5), and the added number also increases by 1 each time (2, 3, 4, 5). This creates an accelerating series where each term depends on the previous term through multiplication and addition.