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: HGF
Explanation This series consists of letters in reverse alphabetical order. QPO NML KJI HGF EDC ND18-9-2023
Answer: FAEKCDHGB
Explanation E: This is the leftmost node in the in-order sequence. It becomes the root in the preorder traversal. A: The next node after E is its left child. So, A is the left child of E. C: Moving further, C is the right child of A. K: K is the right child of C. F: F is the right child of K. H: H is the right child of F. D: D is the left child of F. B: B is the left child of A. G: Finally, G is the right child of B. Putting it all together, we get the preorder traversal: FAEKCDHGB.
Answer: 1/8
Explanation The pattern of the series is obtained by dividing the previous term by 2: 2 ÷ 2 = 1 1 ÷ 1 = 1 1 ÷ 2 = 1/2 1/2 ÷ 2 = 1/4 1/4 ÷ 2 = 1/8 So, the next number in the series is 1/8.
Answer: 85
Explanation Step 1: Find the differences between consecutive terms 20 − 4 = 16 35 − 20 = 15 49 − 35 = 14 62 − 49 = 13 74 − 62 = 12 The differences decrease by 1 each time: 16, 15, 14, 13, 12, … Step 2: Find the next difference Next difference = 11 Step 3: Find the next term Next term = 74 + 11 = 85
Answer: 13
Explanation The pattern appears to be a repeating sequence of: -2, -2, +3, +3, -4, -4 15 (-2) = 13 13 (-2) = 11 11 (+3) = 14 14 (+3) = 17 17 (-4) = 13
Answer: 3
Explanation The given sequence appears to be obtained by dividing the previous term by 3: 2187 ÷ 3 = 729 729 ÷ 3 = 243 243 ÷ 3 = 81 81 ÷ 3 = 27 27 ÷ 3 = 9 9 ÷ 3 = 3
Answer: 5050
Explanation The sum of the first n natural numbers is given by the formula: Sum = n(n + 1) / 2 Step 1: Calculate the sum n = 100 Sum = 100(100 + 1) / 2 = 100 * 101 / 2 = 5050
Answer: file meny
Explanation Alt + F is a keyboard shortcut that opens the file menu or files tab while using the program or application.
Answer: 34
Explanation look at the series 8,22,8,28,6, 34 *** 8 22+6= 28 8 28+6= 34
Answer: 80
Explanation This is a doubling sequence. 5+5 = 10 10+10 = 20 20+20 = 40 40+40 = 80
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