Number Sequences and Patterns Flashcards
6 cards from real Civil Service Numerical Reasoning Test practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Number Sequences and Patterns flashcards as text
What is the next number: 10, 13, 16, 19, 22, __?
Answer: 25
The sequence increases by 3 each time. 22 + 3 = 25.
Find the missing number: 81, 27, 9, __, 1?
Answer: 3
Each term is divided by 3: 81 ÷ 3 = 27, 27 ÷ 3 = 9, 9 ÷ 3 = 3, 3 ÷ 3 = 1.
What comes next: 0, 1, 3, 6, 10, 15, __?
Answer: 21
These are triangular numbers. Differences: +1, +2, +3, +4, +5, +6. Next = 15 + 6 = 21.
What is the missing number: 7, 14, __, 56, 112?
Answer: 28
Each term is doubled: 7, 14, 28, 56, 112.
What is the next term: 100, 50, 25, 12.5, __?
Answer: 6.25
Each term is halved: 12.5 ÷ 2 = 6.25.
Find the missing term: 3, 6, 11, 18, 27, __?
Answer: 38
Differences: +3, +5, +7, +9, +11. Next = 27 + 11 = 38.