Home Subjects Verbal Reasoning Series Completion

Verbal Reasoning
Series Completion

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40 Q 5 Topics Take Mock Test
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Difficulty: All Easy Medium Hard 21–30 of 40
Topics in Verbal Reasoning
Find missing term: 144, 121, 100, 81, 64, ?
A 49
B 50
C 48
D 47
Correct Answer:  A. 49
EXPLANATION

Squares in descending order: 12², 11², 10², 9², 8², 7² = 49

Test
Complete: 2, 5, 10, 17, 26, 37, ?
A 48
B 50
C 52
D 54
Correct Answer:  B. 50
EXPLANATION

Pattern: n² + 1 for n = 1, 2, 3... gives 2, 5, 10, 17, 26, 37, 50

Test
Find the next number: 5, 6, 8, 11, 15, 20, ?
A 25
B 26
C 27
D 28
Correct Answer:  B. 26
EXPLANATION

Differences increase by 1 each time: +1, +2, +3, +4, +5, +6. So 20 + 6 = 26

Test
Complete the series: 1, 2, 6, 24, 120, ?
A 720
B 600
C 840
D 900
Correct Answer:  A. 720
EXPLANATION

Each term is the factorial of its position: 1!, 2!, 3!, 4!, 5!, 6! = 720

Test
Complete the series: 5, 10, 20, 40, ?, 160
A 75
B 80
C 85
D 90
Correct Answer:  B. 80
EXPLANATION

Each term is multiplied by 2. 40 × 2 = 80

Test
Complete: 2, 4, 8, 16, ?, 64, 128
A 30
B 32
C 34
D 36
Correct Answer:  B. 32
EXPLANATION

Powers of 2: 2¹, 2², 2³, 2⁴, 2⁵, 2⁶, 2⁷. Missing is 2⁵ = 32

Test
Find the pattern: 10, 20, 40, 80, 160, ?
A 320
B 310
C 300
D 280
Correct Answer:  A. 320
EXPLANATION

Each term is multiplied by 2. 160 × 2 = 320

Test
Find next: 3, 6, 12, 24, 48, ?
A 96
B 94
C 92
D 90
Correct Answer:  A. 96
EXPLANATION

Each term doubles. 48 × 2 = 96

Test
Complete: 1, 4, 9, 16, 25, ?, 49, 64
A 35
B 36
C 38
D 40
Correct Answer:  B. 36
EXPLANATION

Perfect squares: 1², 2², 3², 4², 5², 6², 7², 8². Missing is 6² = 36

Test
Find next term: 7, 14, 28, 56, 112, ?
A 224
B 220
C 215
D 210
Correct Answer:  A. 224
EXPLANATION

Each term is multiplied by 2. 112 × 2 = 224

Test
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