GCAT Numerical Series Patterns 2 — Questions and Answers
Question 1: What is the next number in the series: 3, 6, 12, 24, 48, ?
- 72
- 84
- 96 (Correct answer)
- 108
Correct answer: 96
Each term is doubled, so 48 × 2 = 96.
Question 2: Find the missing number: 100, 90, 81, 73, 66, ?
- 58
- 60 (Correct answer)
- 61
- 62
Correct answer: 60
The differences are 10, 9, 8, 7, 6 — decreasing by 1 each time, so 66 − 6 = 60.
Question 3: What comes next: 1, 4, 9, 16, 25, ?
- 30
- 34
- 36 (Correct answer)
- 38
Correct answer: 36
These are perfect squares (1², 2², 3², 4², 5²), so the next is 6² = 36.
Question 4: Complete the series: 2, 5, 11, 23, 47, ?
- 89
- 93
- 95 (Correct answer)
- 97
Correct answer: 95
Each term is multiplied by 2 and then 1 is added: 47 × 2 + 1 = 95.
Question 5: Find the next number: 729, 243, 81, 27, ?
- 3
- 6
- 9 (Correct answer)
- 12
Correct answer: 9
Each term is divided by 3, so 27 ÷ 3 = 9.
Question 6: What is the missing value: 7, 14, 28, 56, ?, 224
- 96
- 100
- 112 (Correct answer)
- 128
Correct answer: 112
Each term is multiplied by 2, so 56 × 2 = 112.
Question 7: Complete the series: 1, 3, 6, 10, 15, ?
- 18
- 20
- 21 (Correct answer)
- 24
Correct answer: 21
These are triangular numbers; differences increase by 1 each time (2, 3, 4, 5, 6), so 15 + 6 = 21.
GCAT Numerical Series Patterns 2
What is the next number in the series: 3, 6, 12, 24, 48, ?