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: 2630
Explanation Differences are +7, +14, +28, +56 + 7 , + 14 , + 28 , + 56 — each difference doubles. The next difference is: 56 × 2 = 112 . So 2518+112=2630 2518 + 112 = 2630 .
Answer: None of the above
Explanation 3.333 is the correct answer.
Answer: 730
Explanation In the above sequence, 200 is added to every digit as 140 + 200 = 340 340 + 200 = 540 540 + 200 = 740 730 + 200 = 940 940 + 200 =1140 so the 730 is wrong, the correct sequence is 740 ND16-3-2023
Answer: 50500
Explanation Numbers in the sequence (n): 1000 ÷ 10 = 100 terms. Sum Formula: Sum = n/2 × First Term + Last Term Calculation: Sum = 100/2 × (10 + 1000) Sum = 50 × 1010 Sum = 50500 Last verified on 23-02-2026
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Answer: 51
Explanation Each term in the series is the sum of the preceding two terms So, the missing term is 51 i.e.
Answer: 91
Explanation The pattern of the sequence is adding 3 to the previous term, so: 1 + 3 = 4 4 + 3 = 7 7 + 3 = 10 10 + 3 = 13 ... (Adding 3 repeatedly 28 times) ... 88 + 3 = 91 Therefore, the 31st term of the sequence is 91.
Answer: 12
Explanation Let's analyze the given sequence: 5 ? 14 10 97 Step 1: Identify a Pattern We will check for possible arithmetic or geometric patterns. Observing the numbers: 5 → ? → 14 → 10 → 97 Step 2: Check Differences Let's check if there's an increasing or decreasing pattern: Difference between 14 and 10 = -4 Difference between 10 and 97 = +87 Since the jumps are inconsistent, we may need a different approach. Step 3: Look for an Alternating Pattern The missing number could fit a pattern involving alternating operations. One possible pattern: 5 × 2 + 4 = 14 14 - 4 = 10 14 − 4 = 10 10 times 10 - 3 = 97 10 × 10 − 3 = 97 Thus, checking backwards: The missing number should satisfy: 5 times 2 + 4 = ? 5 × 2 + 4 = ? 5 × 2 + 4 = 10 + 4 = 12
Answer: 58
Explanation Group 1: 3, 5, 8 → 3 + 2 = 5 → 5 + 3 = 8 Group 2: 11, 14, 25 → 11 + 3 = 14 → 14 + 11 = 25 Group 3: 27, 31, ? → 27 + 4 = 31 → 31 + 27 = 58
Answer: None of the above
Explanation 63/10000 is the correct answer.
Answer: 8
Explanation The pattern decreases by 5 , then 5 again: 18 → 13 (minus 5) 13 → 8 (minus 5) 8 → 3 (minus 5)
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