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.

191. Complete series 2,4,7,11,16, ___________?

مکمل سیریز 2,4,7,11,16,__________.؟

Check answer and explanation

Answer: 22

Explanation Sequence: 1, 2, 4, 7, 11, 16, 22, 29, 37, ... ND11-4-2023

192. What number comes next in the series?13, 15 17 19 21

Check answer and explanation

Answer: 23

Explanation Numbers are all primes . The next prime is 23 . 13, 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43......... ND5-07-2023

193. Which number will replace the 8,9, 8, 10, 9, 6, 11, 10, ? 12?

کون سا نمبر 8,9, 8, 10, 9, 6, 11, 10, کی جگہ لے گا؟ 12؟

Check answer and explanation

Answer: 5

Explanation The given sequence is a combination of three series : I. 1st, 4th, 7th, 10th terms i.e. 8, 7, 6,? II. 2nd, 5th, 8th, 11th terms i.e. 9, 10, 11, 12 III. 3rd, 6th, 9th terms i.e. 8, 9, 10 The pattern in I is - 1. So, missing term = 6 - 1 = 5. ND-18-4-2023

194. Find the next term. 1, 4,9, 16, 25, 36, ______ ,

Check answer and explanation

Answer: 49

Explanation 1, 4, 9, 16, 25, 36, ? These numbers are: 1 2 = 1 1^2 = 1 1 2 = 1 2 2 = 4 2^2 = 4 2 2 = 4 3 2 = 9 3^2 = 9 3 2 = 9 4 2 = 16 4^2 = 16 4 2 = 16 5 2 = 25 5^2 = 25 5 2 = 25 6 2 = 36 6^2 = 36 6 2 = 36 So, the pattern is: squares of natural numbers Next term = 7^2 = 49 7 2 = 49 7^2 = 49

195. What number should come next: 8, 4, 2,1, 1 /2, 1/4 ______

Check answer and explanation

Answer: 1/8

Explanation Formula/rule for the series 8, 4, 2, 1, 1/2, 1/4, 1/8........ Detailed Explanation To find the next term in the sequence, let's observe the pattern: Starting with 8 and successively dividing by 2: 8 ÷ 2 = 4 4 ÷ 2 = 2 2 ÷ 2 = 1 1 ÷ 2 = 1/2 (1/2) ÷ 2 = 1/4 It appears that each term is obtained by dividing the previous term by 2. Following this pattern: (1/4) ÷ 2 = 1/8 So, the next term in the sequence is 1/8. Therefore, the completed series is: 8, 4, 2, 1, 1/2, 1/4, 1/8.

196. If 2=0, 3=3, 4=8, 5=15, then 8 = ?

Check answer and explanation

Answer: 32

Explanation 2 x 0 = 0 3 × 1 = 3 4 × 2 = 8 5 × 3 = 15 8 × 4 = 32 ND5-07-2023

197. Which of the following number whose 25% is 75?

Check answer and explanation

Answer: 300

Explanation 75 × 2 = 150 150 × 2 = 300 25%=25÷100 25÷100× x = 75 25x÷100=75 25x=7500 x=7500÷25 x=300 AGM 07.5.23

198. which number can replace both the questions marks in the series: 7, 12, 19, ?, 39

Check answer and explanation

Answer: 28

Explanation Question : 7 12 19 ? 39 Difference: 5 7 9 12 So 19+ 9 = 28

199. Completed the series: 1/3, 1/8, ? , 2/3

Check answer and explanation

Answer: 1/5

Explanation To find the missing term in the sequence, let's examine the pattern: 1/3, 1/8, ?, 2/3 First, notice the denominators: 3, 8, ?, 3. The denominators don't seem to follow a straightforward arithmetic or geometric progression. Let's look at the numerators: 1, 1, ?, 2 The numerators seem to increase by 1 each time. If we consider that the numerators increase by 1 and the denominators are not following a clear pattern, we could assume a pattern where the numerators increase by 1 every two terms. Following this pattern, the missing term should have a numerator of 1, and since it's the second term after 1/8, the denominator should be 5 (since 3 + 2 = 5). So, the missing term is 1/5. Therefore, the completed series is: 1/3, 1/8, 1 /5, 2/3

200. What comes next in the sequence: 1, 3, 11, 43, _____?

Check answer and explanation

Answer: 171

Explanation Let's analyze the pattern: 1 × 4 - 1 = 3 3 × 4 - 1 = 11 11 × 4 - 1 = 43 43 × 4 - 1 = 171

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