Numerical Reasoning: Number Sequences Flashcards
7 cards from real Crossover Aptitude Test practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
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What is the next number in the sequence: 3, 6, 12, 24, 48, ?
Answer: 96
Each term is doubled, so 48 × 2 = 96.
Find the missing number: 100, 91, 82, 73, ?, 55
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.
What comes next: 2, 3, 5, 8, 13, 21, ?
Answer: 34
This is the Fibonacci sequence; each term is the sum of the two preceding terms: 13 + 21 = 34.
Which number completes the sequence: 1, 4, 9, 16, 25, ?
Answer: 36
These are perfect squares (1², 2², 3², …), so the next is 6² = 36.
Find the next term: 5, 10, 20, 40, 80, ?
Answer: 160
Each term is multiplied by 2, so 80 × 2 = 160.
What is the missing value: 50, 45, 40, ?, 30, 25
Answer: 35
The sequence decreases by 5 each time, so the missing value is 40 − 5 = 35.
Complete the sequence: 7, 14, 21, 28, 35, ?
Answer: 42
These are multiples of 7, so the next term is 7 × 6 = 42.