PI Number Series Problems 2 — Questions and Answers
Question 1: What comes next in the series: 3, 6, 12, 24, 48, ___?
- 72
- 84
- 96 (Correct answer)
- 192
Correct answer: 96
Each term is multiplied by 2, so 48 × 2 = 96.
Question 2: Find the missing number: 81, 27, 9, 3, ___
- 0
- 1 (Correct answer)
- 2
- 6
Correct answer: 1
Each term is divided by 3, so 3 ÷ 3 = 1.
Question 3: What is the next term: 2, 5, 10, 17, 26, ___?
- 33
- 35
- 37 (Correct answer)
- 39
Correct answer: 37
The differences are 3, 5, 7, 9, 11 — odd numbers increasing by 2, so 26 + 11 = 37.
Question 4: Complete the series: 1, 1, 2, 3, 5, 8, ___
- 11
- 12
- 13 (Correct answer)
- 14
Correct answer: 13
Each term equals the sum of the two preceding terms (Fibonacci), so 5 + 8 = 13.
Question 5: What comes next: 100, 90, 81, 73, 66, ___?
- 58
- 59
- 60 (Correct answer)
- 61
Correct answer: 60
The differences are 10, 9, 8, 7, 6 — decreasing by 1 each time, so 66 − 6 = 60.
Question 6: Find the missing value: 7, 14, 28, ___, 112
- 42
- 49
- 56 (Correct answer)
- 70
Correct answer: 56
Each term doubles, so 28 × 2 = 56, and 56 × 2 = 112 confirms the pattern.
Question 7: What is the next number: 3, 9, 27, 81, ___?
- 162
- 216
- 243 (Correct answer)
- 324
Correct answer: 243
Each term is multiplied by 3 (powers of 3), so 81 × 3 = 243.
PI Number Series Problems 2
What comes next in the series: 3, 6, 12, 24, 48, ___?