Multiple choice

A series is given with one/two term missing choose the correct alternative from the given one that will complete the series. $6, 29, 121, ?, 1961$

  1. 429

  2. 489

  3. 484

  4. 461
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The pattern is: ×4, +5 repeated. 6×4=24+5=29, 29×4=116+5=121, 121×4=484+5=489, 489×4=1956+5=1961. The missing term is 489. Option B is correct. The pattern is consistently multiply by 4 then add 5.

Keep practicing — related questions