Number/Letter Series MCQs for CET 12th Level
Practice 20 free Number/Letter Series questions under Mental Ability — Reasoning & Mental Ability.
Strengthen your Number/Letter Series knowledge for CET 12th Level with curated MCQs. Switch between Hindi and English anytime.
CET 12th Level — Mental Ability — Number/Letter Series
20 Questions • Instant results & explanations • Hindi & English
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Question 1 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 2 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 3 of 20
Consider the following statements: Statement I: In multiplication-based series, operations like addition or subtraction can never occur simultaneously. Statement II: In division-based series, operations like addition or subtraction can accompany the primary division. Which of the statements is/are correct?
Question 4 of 20
What can be the constituent elements of a reasoning series puzzle?
Question 5 of 20
If a student observes a number puzzle where values first increase and then decrease by large margins consecutively, what should they investigate first?
Question 6 of 20
Assertion (A): In the series 2, 3, 5, 7, 11, the next term must be 13. Reason (R): The series consists of prime numbers starting from 2.
Question 7 of 20
Match List-I (Sequence Type) with List-II (Underlying Logic) and choose the correct code: List-I a. 1, 4, 9, 16 b. 2, 3, 5, 7 c. 10, 8, 6, 4 List-II 1. Normal Decrease (Subtraction) 2. Squares of Natural Numbers 3. Prime Numbers
Question 8 of 20
Assertion (A): A series where values decrease very rapidly implies alternate addition and subtraction. Reason (R): Rapid decreases in series values are primarily caused by division operations.
Question 9 of 20
When the values in a number series are decreasing at a normal rate, the underlying operation is generally:
Question 10 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 11 of 20
Consider the following statements: I. A number series based entirely on squares will show a rapid increase. II. A number series based on simple addition will show a rapid, exponential increase. Which of the statements given above is/are correct?
Question 12 of 20
Assertion (A): Constant practice is considered the most effective method for mastering number puzzles. Reason (R): The mathematical operations and rules applied vary significantly from one question to another.
Question 13 of 20
Consider the following statements regarding the behavior of number series: I. If the numbers grow rapidly, the rule must strictly be a pure multiplication without any other accompanying operation. II. If the numbers grow rapidly, the rule involves multiplication (or positive power), which might also be accompanied by addition or subtraction. Which of the statements is/are correct?
Question 14 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 15 of 20
Consider the following statements regarding diagram-based number puzzles: I. Numbers filled in a diagram follow a specific rule. II. The operations required to find the missing term are usually entirely different from standard arithmetic like addition, subtraction, or squares. Which of the statements given above is/are correct?
Question 16 of 20
If a series alternately increases and decreases, but the difference between consecutive terms is small, which operations are alternating?
Question 17 of 20
The series 2, 3, 5, 7, 11, 13, 17 is based on which specific sequence?
Question 18 of 20
Assertion (A): A series displaying numbers 2, 3, 5, 7, 11 shows an addition of constant values between terms. Reason (R): 3-2=1, 5-3=2, 7-5=2, 11-7=4 does not yield a constant added value, indicating the series rule is prime numbers instead.
Question 19 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 20 of 20