WBCS.LIVE practice question

What number should come next in the sequence 6, 11, 21, 36, 56, ________?

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. 78
  2. 81
  3. 82
  4. 86

Correct answer and explanation

Correct answer: 81

Explanation: āœ… Correct Answer: B) 81 šŸ“š Explanation: The sequence follows a pattern of adding increasing multiples of 5: 6+5=11, 11+10=21, 21+15=36, 36+20=56. The numbers added are 5, 10, 15, and 20. Following this rule, the next number to be added should be 25. Therefore, 56 + 25 = 81. Identifying this arithmetic progression in the differences allows us to find the missing term.