Series Completion MCQs - Maths Practice | PakExamPoint

Practise Series Completion MCQs in Maths. Attempt multiple-choice questions, check answers and revise related subtopics.

Series Completion MCQs and revision practice

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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Series Completion: questions and answer review

Try each question before opening its answer. Record the concept behind each mistake and revisit it during your next practice session.

371. The sequence is: 2 / 4 → 4 / 16 → 16 / 256 → ?

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Answer: 256 / 65536

Explanation Step 1: Look at the numerators 2 → 4 → 16 → ? Notice: 2^ 1 = 2 , 2^ 2 = 4 , 4^ 2 = 16 So the pattern seems to be: previous numerator squared . Next numerator = 1 6^ 2 = 256 Step 2: Look at the denominators 4 rightarrow 16 rightarrow 256 rightarrow ? 4 → 16 → 256 → ? Notice: 4 = 2^ 2 , 16 = 4^ 2 , 256 = 1 6^ 2 So the denominator follows the same squaring pattern : Next denominator = 256^2 = 65536 25 6^ 2 = 65536 Step 3: Complete the sequence 2/4 rightarrow 4/16 rightarrow 16/256 rightarrow 256 / 65536 2/4 → 4/16 → 16/256 → 256/65536 Last updated 11-02-2026

372. Find the missing number 3 3 5 5 7 7

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Answer: 9 9

Explanation This is an odd series 3 3 5 5 7 7 9 9 11 11 13 13....

373. Which is different from rest: Table, Tehran, Karachi, Lahore .......?

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Answer: Table

Explanation Tehran, Karachi, and Lahore are cities, While Table is an object .

374. Complete the series 15,30,45 ,.....?

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Answer: 60

Explanation The sequence you gave — 15, 30, 45, … — is increasing by 15 each time. So: First term: 15 Second term: 30 ( 15 + 15 ) Third term: 45 ( 30 + 15 ) Fourth term: 60 ( 45 + 15 ) Next term = 60

375. 24, 34, 54, 84, _______?

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Answer: 124

Explanation 24, 34, 54, 84, 124 24 + 10 = 34 34 + 20 = 54 54 + 30 = 84 84 + 40 = 124 124 + 50 = 174 174 + 60 = 234 234 + 70 = 304 304 + 80 = 384 384 + 90 = 474 474 + 100 = 574 ND-21-5-2023

376. What is the missing number in the sequence 4, 6, 10, 18, …… , 66?

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Answer: 34

Explanation 4 + 2 =6 6 + 4 = 10 10 + 8 = 18 18 + 16 = 34 34 + 32 = 66

377. 115, 55, 170, 65, 235 ____ next number in the series?

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Answer: 75

Explanation Step 1: Look at the differences alternately 115 → 55 = −60 55 → 170 = +115 170 → 65 = −105 65 → 235 = +170 Step 2: Find the pattern in differences Negative differences: −60, −105, … (increasing magnitude) Positive differences: +115, +170, … (increasing by 55 each time) Step 3: Find the next number Last number = 235 The pattern alternates between negative and positive Next difference = −160 (fits pattern of increasing negative difference magnitude: 60, 105, 160) 235 − 160 = 75

378. Find the missing number: DRIVER = 7, PARLIAMENTARIAN = 16, SECRETARY = ____?

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Answer: 10

Explanation The pattern appears to be the number of letters in each word: DRIVER has 6 letters, but the value is 7 ( possibly due to a additional constant or a different calculation) PARLIAMENTARIAN has 15 letters, but the value is 16 (again, possibly due to a additional constant or a different calculation) If we apply the same pattern to SECRETARY , which has 9 letters, we get: SECRETARY = 10 (using the same offset as before) So, the correct answer is: 10

379. Find the missing number in the series: 243, 81, 27, 9, ?

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Answer: 3

Explanation 243, 81, 27, 9, ? ÷3 pattern: 243 ÷ 3 = 81 81 ÷ 3 = 27 27 ÷ 3 = 9 9 ÷ 3 = 3 Last verified on 15-02-2026

380. 1234 is to 46 and 3925 is to 514. Therefore, 1864 is to:

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Answer: 712

Explanation 1864 1 + 6 = 7 8 + 4 + 12 Total = 712 This question is wrong as I think. let see how to solve it! 1234 4 and 1+2+3 46 3925 5 and 2+9+3 514 and last one according to this rule 1864 4 and 1+6+8 415

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