Number/Letter Series MCQs for CET 12th Level
Practice 20 free number/letter series multiple choice questions for CET 12th Level exam. Instant answers, explanations in Hindi and English, and topic-wise targeted practice.
Master Number/Letter Series under Mental Ability for CET 12th Level with our curated MCQ set. Every question is sourced from real Rajasthan exam patterns and updated regularly. Switch between Hindi and English anytime. Use this daily to strengthen weak areas before the exam.
CET 12th Level — Mental Ability — Number/Letter Series
20 Questions • Instant results & explanations • Hindi & English
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Question 1 of 20
If the values in a series are decreasing very rapidly, which operation is most likely occurring?
Question 2 of 20
Consider the following statements: I. Rapid increase in numbers indicates multiplication, square, or a positive power. II. Rapid decrease in numbers exclusively indicates subtraction without division. Which of the statements given above is/are incorrect?
Question 3 of 20
Which of the following operations are explicitly identified as the foundational bases for numerical series puzzles?
Question 4 of 20
A rapid increase in the digits of a series most definitively indicates the primary use of which of the following operations?
Question 5 of 20
If the numbers in a series are increasing at a normal rate, which mathematical operation is the series most likely based on?
Question 6 of 20
If a mathematical sequence begins with 2, 3, 5, 7, 11, what is the primary mathematical characteristic identifying this specific progression?
Question 7 of 20
A student identifies that a series uses multiplication because the numbers grow rapidly. However, the exact multiples don't match. What additional step is advised by the standard puzzle rules?
Question 8 of 20
A student encounters a diagram puzzle with missing numbers. Based on standard guidelines, which mathematical operations might they expect to employ?
Question 9 of 20
Assertion (A): Identifying whether a series alternates between increasing and decreasing can help immediately filter the possible mathematical operations involved. Reason (R): Alternating patterns strictly narrow the possibilities to either alternating add/sub or alternating mult/div, based on the magnitude of change.
Question 10 of 20
What kind of operation is most probably governing a series if the numbers decrease at an unusually fast rate, but do not land on exact quotients?
Question 11 of 20
In the series 1, 4, 9, 16, ?, 36, what is the missing term and what rule does it follow?
Question 12 of 20
Consider the following statements: Statement I: Finding the missing term in a series strictly requires identifying the governing rule of the series. Statement II: The governing rule of a series is typically based on standard mathematical operations like squares, cubes, addition, etc. Which of the statements given above is/are correct?
Question 13 of 20
Consider the following statements regarding number series: I. A normal rate of increase suggests an addition-based series. II. A normal rate of decrease suggests a subtraction-based series. Which of the statements given above is/are correct?
Question 14 of 20
If a sequence is formed by calculating the cubes of natural numbers, what mathematical operation would theoretically reverse the process to find the original base number from the sequence term?
Question 15 of 20
Match List-I (Visual Change in Series) with List-II (Underlying Mathematical Operation) and select the correct answer: List-I a. Rapid Increase b. Normal Increase c. Small alternate fluctuations List-II 1. Addition 2. Alternate Addition & Subtraction 3. Multiplication or Positive Power
Question 16 of 20
Assertion (A): The mathematical operation applied to find a missing term in a number puzzle is always identical across all puzzles of that category. Reason (R): Different puzzles involve different mathematical operations, requiring specific identification for each individual case.
Question 17 of 20
Consider the following statements regarding number series: I. A series exhibiting a normal rate of decrease is typically based on subtraction. II. A series exhibiting a rapid rate of decrease is typically based on division. Which of the statements given above is/are correct?
Question 18 of 20
Which specific sequence correctly represents the logical rule of 'Squares of natural numbers'?
Question 19 of 20
What mathematical pattern governs a series where values increase and decrease alternately, but the difference between consecutive terms remains relatively small?
Question 20 of 20