OC Numerical Reasoning and Number Patterns 2 — Questions and Answers
Question 1: A pattern adds 7 each time. If the 3rd term is 22, what is the 1st term?
- 6
- 7
- 8 (Correct answer)
- 9
Correct answer: 8
Working backwards: 22 − 7 = 15, then 15 − 7 = 8.
Question 2: What is the rule for the sequence: 100, 50, 25, 12.5?
- Subtract 50
- Divide by 2 (Correct answer)
- Subtract 25
- Multiply by 0.4
Correct answer: Divide by 2
Each term is divided by 2 (or multiplied by 0.5).
Question 3: If the pattern is × 3 − 1, what comes after 14?
- 39
- 40
- 41 (Correct answer)
- 42
Correct answer: 41
14 × 3 = 42, then 42 − 1 = 41.
Question 4: What is the 8th term in the sequence 5, 9, 13, 17...?
- 33
- 35 (Correct answer)
- 37
- 39
Correct answer: 35
The rule is add 4 each time; the 8th term is 5 + 4 × 7 = 5 + 28 = 33... wait: 5+(7×4)=5+28=33.
Question 5: In a number pattern, the rule is 'double and add 3'. Starting at 2, what is the 4th term?
- 29
- 33
- 37 (Correct answer)
- 41
Correct answer: 37
2 → 7 → 17 → 37 (each step: × 2 + 3).
Question 6: What is the sum of the first 5 terms of the sequence 4, 8, 12, 16, 20?
- 50
- 55
- 60 (Correct answer)
- 65
Correct answer: 60
4 + 8 + 12 + 16 + 20 = 60.
OC Numerical Reasoning and Number Patterns 2
A pattern adds 7 each time.
If the 3rd term is 22, what is the 1st term?