EIAT Number Series and Pattern Recognition 5 — Questions and Answers
Question 1: What number is missing: 7, 14, 28, ___, 112?
- 42
- 48
- 56 (Correct answer)
- 64
Correct answer: 56
Each term is doubled, so 28 × 2 = 56.
Question 2: Identify the next term: 1, 1, 2, 3, 5, 8, 13, ___?
- 18
- 20
- 21 (Correct answer)
- 22
Correct answer: 21
This is the Fibonacci sequence; each term is the sum of the two before it: 8 + 13 = 21.
Question 3: A maintenance schedule lists service every: 30, 60, 90, 120, ___ days. What comes next?
- 140
- 150 (Correct answer)
- 155
- 160
Correct answer: 150
The series increases by 30 each time, so 120 + 30 = 150.
Question 4: What is the next value: 729, 243, 81, 27, ___?
- 3
- 6
- 9 (Correct answer)
- 18
Correct answer: 9
Each term is divided by 3, so 27 ÷ 3 = 9.
Question 5: Find the missing term: 11, 22, 33, ___, 55, 66?
- 40
- 42
- 44 (Correct answer)
- 46
Correct answer: 44
The series counts multiples of 11, so the missing term is 11 × 4 = 44.
Question 6: An elevator's load capacity readings are: 2000, 1750, 1500, 1250, ___. What is next?
- 900
- 950
- 975
- 1000 (Correct answer)
Correct answer: 1000
Each reading decreases by 250, so 1250 − 250 = 1000.
Question 7: What is the next term: 4, 8, 24, 96, 480, ___?
- 960
- 1920
- 2400
- 2880 (Correct answer)
Correct answer: 2880
The multipliers are ×2, ×3, ×4, ×5, ×6, so 480 × 6 = 2880.
EIAT Number Series and Pattern Recognition 5
What number is missing: 7, 14, 28, ___, 112?