Numerical Reasoning Number Series and Sequences 3 — Questions and Answers
Question 1: What is the next term: 2, 3, 5, 9, 17, __?
- 33 (Correct answer)
- 31
- 35
- 29
Correct answer: 33
Each term = previous term × 2 − 1: 2→3(×2−1), 3→5, 5→9, 9→17, 17→33.
Question 2: Find the missing number: 4, 12, 36, 108, __, 972?
- 324 (Correct answer)
- 216
- 432
- 288
Correct answer: 324
Each term is multiplied by 3; 108 × 3 = 324.
Question 3: What comes next: 1, 3, 6, 10, 15, __?
- 21 (Correct answer)
- 18
- 20
- 24
Correct answer: 21
These are triangular numbers; differences are +2, +3, +4, +5, +6; 15+6 = 21.
Question 4: Identify the next number: 256, 128, 64, 32, __?
- 16 (Correct answer)
- 8
- 24
- 12
Correct answer: 16
Each term is halved; 32 ÷ 2 = 16.
Question 5: What is the missing term: 11, 22, 44, 88, __, 352?
- 176 (Correct answer)
- 132
- 200
- 160
Correct answer: 176
Each term is doubled; 88 × 2 = 176.
Question 6: Find the next term in the sequence: 0, 1, 4, 9, 16, 25, __?
- 36 (Correct answer)
- 49
- 32
- 30
Correct answer: 36
These are square numbers starting from 0²; the next is 6² = 36.
What is the next term: 2, 3, 5, 9, 17, __?