Numerical Series Patterns Flashcards
7 cards from real GCAT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Numerical Series Patterns flashcards as text
What is the next number: 3, 5, 9, 17, 33, ?
Answer: 65
Each term after the first is found by doubling the previous term and subtracting 1: 33 × 2 − 1 = 65.
Find the missing number: 81, 27, 9, 3, ?
Answer: 1
Each term is divided by 3, so 3 ÷ 3 = 1.
Complete the sequence: 6, 11, 16, 21, 26, ?
Answer: 31
Each term increases by 5, so 26 + 5 = 31.
What comes next: 2, 6, 12, 20, 30, ?
Answer: 42
The differences are 4, 6, 8, 10, 12 — increasing by 2 each time, so 30 + 12 = 42.
Find the next value: 144, 121, 100, 81, 64, ?
Answer: 49
These are perfect squares in descending order (12², 11², 10², 9², 8²), so the next is 7² = 49.
What is the next term: 4, 8, 24, 96, 480, ?
Answer: 2880
The multipliers are ×2, ×3, ×4, ×5, ×6 — each increases by 1, so 480 × 6 = 2880.
Complete the series: 17, 14, 11, 8, 5, ?
Answer: 2
Each term decreases by 3, so 5 − 3 = 2.