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: XVII
Explanation The series is formed by incrementing the Roman numerals by 3: V (5) + 3 = VIII (8) VIII (8) + 3 = XI (11) XI (11) + 3 = XIV (14) XIV (14) + 3 = XVII (17) So, the next number in the series is XVII.
Answer: 3058
Explanation Given Four digits are 0,3,5,8 To write the smallest 4-digit numbers using the above digits, we must arrange them in ascending order. Here, we get 0358 = 358 [It has only 3 digits ] 3058 Therefore, The smallest 4-digit number using 0,3,5,8 is 3058 .
Answer: UWY
Explanation letters in each group increase by +2 within the group and the first letters go +5 between groups. FHJ → F(6), H(8), J(10) KMO → K(11), M(13), O(15) (first +5) PRT → P(16), R(18), T(20) (first +5) Next first = 16 + 5 = 21 → U(21); then +2 → W(23); +2 → Y(25) ⇒ UWY .
Answer: 63
Explanation 3 × 2 + 1 = 7 7 × 2 + 1 = 15 15 × 2 + 1 = 31 31 × 2 + 1 = 63 63 × 2 + 1 = 127
Answer: WD
Explanation First letters move backward through the alphabet: Z, Y, X → W . Second letters move forward: A, B, C → D .
Answer: Q
Explanation The alphabets follow a pattern: C + 2 = E E + 3 = H H + 4 = L L + 5 = Q Q + 6 = W W + 7 = D Hence, D replaces the question mark.
Answer: 36
Explanation 2 * 2 = 4 3 * 3 = 9 4 * 4 = 16 5 * 5 = 25 6 * 6 = 36 Therefore, the series is 2, 4, 3, 9, 4, 16, 5, 25, 36. *** ND11-12-2022
Answer: 20
Explanation Let’s analyze the pattern step by step: Series: 80, 10, 70, 15, 60, ? Two alternating patterns: 1st, 3rd, 5th terms: 80 → 70 → 60 → (next will be 50) → decreasing by 10. 2nd, 4th, 6th terms: 10 → 15 → (next will be 20) → increasing by 5. After 60, the next term should follow the second pattern → 20
Answer: 8116
Explanation A × B = (A²)(B²) 2×2 → 2² = 4, 2² = 4 → 44 3×2 → 3² = 9, 2² = 4 → 94 Try 9×4: 9² = 81, 4² = 16 → 8116
Answer: 21
Explanation Fibonacci sequence: next number is sum of previous two → 8 + 13 = 21
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