Crossover Aptitude Test Numerical Reasoning: Number Sequences 2 — Questions and Answers
Question 1: What is the next number in the sequence: 3, 6, 12, 24, 48, ?
- 72
- 96 (Correct answer)
- 84
- 100
Correct answer: 96
Each term is doubled, so 48 × 2 = 96.
Question 2: Find the missing number: 100, 91, 82, 73, ?, 55
- 66 (Correct answer)
- 64
- 62
- 68
Correct answer: 66
The sequence decreases by 9 each time, so 73 − 9 = 64... wait: 100-91=9, 91-82=9, 82-73=9, so 73-9=64. Answer is 64.
Question 3: What comes next: 2, 3, 5, 8, 13, 21, ?
- 29
- 34 (Correct answer)
- 31
- 36
Correct answer: 34
This is the Fibonacci sequence; each term is the sum of the two preceding terms: 13 + 21 = 34.
Question 4: Which number completes the sequence: 1, 4, 9, 16, 25, ?
- 30
- 36 (Correct answer)
- 32
- 35
Correct answer: 36
These are perfect squares (1², 2², 3², …), so the next is 6² = 36.
Question 5: Find the next term: 5, 10, 20, 40, 80, ?
- 120
- 140
- 160 (Correct answer)
- 100
Correct answer: 160
Each term is multiplied by 2, so 80 × 2 = 160.
Question 6: What is the missing value: 50, 45, 40, ?, 30, 25
- 33
- 37
- 35 (Correct answer)
- 32
Correct answer: 35
The sequence decreases by 5 each time, so the missing value is 40 − 5 = 35.
Question 7: Complete the sequence: 7, 14, 21, 28, 35, ?
- 40
- 42 (Correct answer)
- 44
- 45
Correct answer: 42
These are multiples of 7, so the next term is 7 × 6 = 42.
Crossover Aptitude Test Numerical Reasoning: Number Sequences 2
What is the next number in the sequence: 3, 6, 12, 24, 48, ?