Practise Series Completion MCQs in Maths. Attempt multiple-choice questions, check answers and revise related subtopics.
Study Series Completion through multiple-choice questions in Maths. This subtopic contains 539 practice questions. Read the wording carefully, compare the options and attempt an answer before checking the solution in learning mode.
Use these Series Completion MCQs to identify the facts, rules or methods you need to revise. Where an explanation is available, work through it and write down why your chosen option was correct or incorrect. Revisit difficult questions after reviewing your notes, then use exam mode for timed practice.
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Answer: 24
Explanation 8+16+24+32+40 = 120/5 = 24
Answer: V
Explanation Letter positions: B(2), D(4), G(7), K(11), P(16). Differences increase by 1 each time (+2, +3, +4, +5), so next +6 → 16 + 6 = 22 → V .
Answer: 12
Explanation 6 → ? → 60 → 120 → 12 Maybe pattern between 60 → 120 → 12 120 is double of 60 Then 12 is 1/10th of 120 Looking at options, 12 fits as repeating
Answer: 421
Explanation Given series: 459, 440, ?, 402, 383 Difference between terms: 459 - 440 = 19 402 - 383 = 19 Assuming constant difference of 19: ? = 440 - 19 = 421
Answer: 18
Explanation Finding the pattern: 6−4=2 9−6=3 13−9=4 The differences between consecutive numbers are +2, +3, +4. Following this pattern, the next difference should be +5. So, 13+5=18.
ایک کلاس کے 16 لڑکوں کا اوسط وزن 50.25 کلوگرام ہے اور باقی 8 لڑکوں کا وزن 45.15 کلوگرام ہے۔ کلاس کے تمام لڑکوں کا اوسط وزن معلوم کریں۔
Answer: 48.55 kg
Explanation Average weight of 16 boys = (50.25 × 16 + 45.15 × 8) / 16 + 8 = 804 + 361.20 / 24 = 1165.20 / 24 = 48.55 kg. ND11-4-2023
Answer: 2187
Explanation This is a geometric progression (GP) where each term is multiplied by 3: 1, 3, 9, 27, 81, 243, 729, 2187 Formula: a n = a × r^ ( n − 1 ) Here: a = 1 r = 3 n = 8 So: a 8 = 1 × 3^ 7 = 2187 8th term = 2187 Last updated by NA on 2 MAY 2026
Answer: VE
Explanation The first letter decreases in alphabetical order: Z → Y → X → W → V . The second letter increases: A → B → C → D → E . Thus, the next term is VE .
Answer: 47
Explanation Let's analyze the sequence: The pattern appears to be obtained by adding 3, 6, 12, ... (doubling the previous increment). 2 + 3 = 5 5 + 6 = 11 11 + 12 = 23 23 + 24 = 47
Answer: 24
Explanation Let the number = x 3x/4 - x/2 = 6 (3x - 2x)/4 = 6 3x - 2x = 24 X = 24
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