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: 28
Explanation 3 + 2 = 5 5+ 2 = 7 7+ 3= 10 10 + 2 = 12 12 + 2 = 14 14+ 10 = 24 24 + 2 = 26 26 + 2 = 28
Answer: 160
Explanation The pattern of the sequence is doubling the previous term: 10 × 2 = 20 20 × 2 = 40 40 × 2 = 80 80 × 2 = 160 So, the next number in the sequence is 160.
Answer: 15
Explanation Step 1: Find the pattern 24 − 27 = −3 21 − 24 = −3 18 − 21 = −3 The series decreases by 3 each time. Step 2: Find the next term Next number = 18 − 3 = 15
Answer: 5
Explanation Wait check: sequence = 1, 3, 5, 7, 11 Differences : 3 − 1 = 2 5 − 3 = 2 7 − 5 = 2 11 − 7 = 4 Question updated 03-March-2026
Answer: 81
Explanation The pattern of the series appears to be square numbers: 1 = 1^2 9 = 3^2 25 = 5^2 49 = 7^2 81 = 9^2 121 = 11^2 So, the correct completion of the series would be: 1, 9, 25, 49, 81 , 121
Answer: Rs. 1,200
Explanation Let the Cost price of the Chair is X. SP = X - 25% of X 720 = 0.75X X = 960 CP = Rs . 960 So, To gain 25%, SP would be = 960 + 25% of 960 = Rs . 1200
Answer: 127
Explanation 63 + 64 = 127.
Answer: 18
Explanation There are two series: First Second 6+4=10 8+3=11 10+4=14 11+4=15 14+4=18 15+5=20
Answer: 11
Explanation The pattern increases by 2 with each number. After 9 , the next number is 11 .
Answer: 32
Explanation Step 1: Identify the rule Each number is multiplied by 2 : 2 × 2 = 4 4 × 2 = 8 8 × 2 = 16 Step 2: Find the next term 16 times 2 = 32 16 × 2 = 32 Last updated by NA on 23-April-2026
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