Find the next number in the series: 3, 5, 11, 21, 35, ?

  1. 49
  2. 53
  3. 50
  4. 54
Answer

B) 53

Differences are 2, 6, 10, 14 — they change by 4 each time, so the next difference is 18: 35 + 18 = 53.

Quantitative Reasoning MCQ · More Number Series MCQs · Practise