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Quantitative Reasoning Exam
Below is your continuous, unbridged 250-question multiple-choice exam for Quantitative Reasoning. This comprehensive exam covers all core quantitative reasoning topics including: number series and patterns (arithmetic, geometric, Fibonacci, quadratic), mathematical analogies (fractional, time, distance, work), quantitative comparisons, word problems (percentages, ratios, rates, mixtures, age, work, distance), data interpretation (tables, charts, graphs), logic and Venn diagram problems, and applied problem-solving. Each question is followed immediately by the correct answer (A–D), a concise explanation, and a reference to the skill area.
Question 1 Look at this series: 2, 6, 18, 54, ___. What number should come next? A) 108 B) 162 C) 216 D) 270
Answer: B Explanation: Each term is multiplied by 3: 2 × 3 = 6; 6 × 3 = 18; 18 × 3 = 54; 54 × 3 = 162. Reference: Number Series - Geometric Sequence
Question 2 Look at this series: 100, 96, 92, 88, ___. What number should come next? A) 84 B) 86 C) 82 D) 80 Answer: A Explanation: Each term decreases by 4: 100 - 4 = 96; 96 - 4 = 92; 92 - 4 = 88; 88 - 4 = 84. Reference: Number Series - Arithmetic Sequence (Decreasing)
B) 46
C) 47
D) 48
Answer: D Explanation: The differences increase by 2 each time: 8-3=5; 15-8=7; 24 - 15=9; 35-24=11; 35+13=48. Reference: Number Series - Quadratic Pattern (Difference Increases by 2)
Question 5 Look at this series: 1, 4, 9, 16, 25, ___. What number should come next? A) 30 B) 32 C) 36 D) 40 Answer: C
Explanation: These are perfect squares: 1²=1, 2²=4, 3²=9, 4²=16, 5²=25, 6²=36. Reference: Number Series - Perfect Squares
Question 6 Look at this series: 2, 6, 12, 20, 30, ___. What number should come next? A) 36 B) 38 C) 40 D) 42 Answer: D Explanation: The differences increase by 2: 6-2=4; 12-6=6; 20-12=8; 30 - 20=10; 30+12=42. (n×(n+1) pattern) Reference: Number Series - Consecutive Products
D) 42
Answer: C Explanation: The differences are: 8-5=3; 13-8=5; 20-13=7; 29-20=9; 29+11=40. (Differences increase by 2) Reference: Number Series - Increasing Differences
Question 9 Look at this series: 7, 14, 28, 56, ___. What number should come next? A) 84 B) 98 C) 112 D) 126 Answer: C Explanation: Each term is multiplied by 2: 7×2=14; 14×2=28; 28×2=56; 56×2=112. Reference: Number Series - Doubling Sequence
Question 10 Look at this series: 21, 18, 15, 12, 9, ___. What number should come next? A) 6 B) 5 C) 4 D) 3 Answer: A Explanation: Each term decreases by 3: 21-3=18; 18-3=15; 15-3=12; 12 - 3=9; 9-3=6. Reference: Number Series - Arithmetic Decrease
Question 11 Look at this series: 1, 8, 27, 64, 125, ___. What number should come next?
Explanation: Differences: 5-2=3; 10-5=5; 17-10=7; 26-17=9; 26+11=37. (n²+1 pattern) Reference: Number Series - n² + 1 Pattern
Question 13 Look at this series: 3, 9, 27, 81, ___. What number should come next? A) 162 B) 216 C) 243 D) 324 Answer: C Explanation: Each term is multiplied by 3: 3×3=9; 9×3=27; 27×3=81; 81×3=243. Reference: Number Series - Powers of 3
Question 14
Look at this series: 55, 50, 45, 40, 35, ___. What number should come next? A) 30 B) 28 C) 25 D) 20 Answer: A Explanation: Each term decreases by 5: 55-5=50; 50-5=45; 45-5=40; 40 - 5=35; 35-5=30. Reference: Number Series - Constant Decrease
Question 15 Look at this series: 1, 3, 7, 15, 31, ___. What number should come next? A) 47 B) 55 C) 63 D) 71
Question 17 Look at this series: 0, 3, 8, 15, 24, 35, ___. What number should come next? A) 47 B) 48 C) 49 D) 50 Answer: B Explanation: n²-1: 1²-1=0, 2²-1=3, 3²-1=8, 4²-1=15, 5²-1=24, 6²-1=35, 7²-1=48. Reference: Number Series - n²- 1
Question 18 Look at this series: 4, 12, 36, 108, ___. What number should come next? A) 216 B) 324
C) 432
D) 540
Answer: B Explanation: Each term is multiplied by 3: 4×3=12; 12×3=36; 36×3=108; 108×3=324. Reference: Number Series - Geometric
Question 19 Look at this series: 96, 48, 24, 12, ___. What number should come next? A) 4 B) 6 C) 8 D) 10 Answer: B Explanation: Each term is divided by 2: 96÷2=48; 48÷2=24; 24÷2=12; 12÷2=6.
Look at this series: 38, 34, 30, 26, 22, ___. What number should come next? A) 16 B) 18 C) 20 D) 24 Answer: B Explanation: Each term decreases by 4: 38-4=34; 34-4=30; 30-4=26; 26 - 4=22; 22-4=18. Reference: Number Series - Decreasing by Constant
Question 22 Look at this series: 5, 10, 20, 40, 80, ___. What number should come next? A) 100 B) 120 C) 140 D) 160
Answer: D Explanation: Each term is multiplied by 2: 5×2=10; 10×2=20; 20×2=40; 40×2=80; 80×2=160. Reference: Number Series - Doubling
Question 23 Look at this series: 2, 6, 12, 20, 30, 42, ___. What number should come next? A) 52 B) 54 C) 56 D) 58 Answer: C Explanation: Differences increase by 2: 4,6,8,10,12; 42+14=56. (n×(n+1) pattern) Reference: Number Series - Consecutive Products
B) 142
C) 162
D) 182
Answer: C Explanation: Double and subtract 2: (7×2)-2=12; (12×2)-2=22; (22×2)- 2=42; (42×2)-2=82; (82×2)-2=162. Reference: Number Series - Double Minus Constant
Question 26 Look at this series: 25, 26, 28, 31, 35, ___. What number should come next? A) 39 B) 40 C) 41 D) 42 Answer: B Explanation: Differences increase by 1: 1,2,3,4; 35+5=40.
Reference: Number Series - Increasing Differences
Question 27 Look at this series: 10, 15, 22, 31, 42, ___. What number should come next? A) 53 B) 55 C) 57 D) 59 Answer: B Explanation: Differences increase by 2: 5,7,9,11; 42+13=55. Reference: Number Series - Quadratic
Question 28 Look at this series: 1000, 500, 250, 125, ___. What number should come next?
