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Mental Ability MCQs for RAS

Practice 20 free mental ability multiple choice questions for RAS exam. Instant answers with explanations in Hindi and English.

Strengthen your Mental Ability knowledge for RAS with our free curated MCQ set. Every question follows real Rajasthan exam patterns. Switch between Hindi and English, and practice daily to build confidence before the exam.

RAS — Mental Ability

20 Questions • Instant results & explanations • Hindi & English

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Question 1 of 20

Assertion (A): In word substitution coding, factual real-world knowledge is necessary but not sufficient to answer the question. Reason (R): The final answer must always be derived by passing the real-world fact through the artificial substitution rule provided in the problem.

Question 2 of 20

Read the following instructions: A @ B means A is the brother of B; A # B means A is the mother of B; A $ B means A is the father of B. Which of the following represents that 'C is the paternal uncle of D'?

Question 3 of 20

Read the following information carefully: 'A + B' means 'A is the father of B'; 'A - B' means 'A is the sister of B'; 'A × B' means 'A is the husband of B'; 'A ÷ B' means 'A is the daughter of B'. If 'P ÷ Q + R × S', then how is P related to S?

Question 4 of 20

If M % N means M is the son of N; M @ N means M is the sister of N; M $ N means M is the husband of N. How is A related to E in A % B $ C @ D % E?

Question 5 of 20

If a candidate decides to encrypt the word 'ZOO' strictly adhering to the reverse alphabetical numerical system, what integer will form the very first part of their resulting code?

Question 6 of 20

Match List-I (Alphabetical Letters) with List-II (Reverse Numerical Positions) correctly: List-I P. A Q. B R. C S. D List-II 1. 23 2. 24 3. 25 4. 26

Question 7 of 20

Consider the following statements regarding the prerequisites for a successful encrypted communication: I. The sender must convert meaningful text into an obscure format using a specific predefined rule. II. The receiver must know the exact same predefined rule to accurately retrieve the original information. Which of the statements is/are correct?

Question 8 of 20

Study the following information carefully: P × Q means 'P is mother of Q'; P + Q means 'P is sister of Q'; P ÷ Q means 'P is brother of Q'; P - Q means 'P is father of Q'. Which of the following means M is the nephew of N?

Question 9 of 20

If 'P = Q' means 'P is the father of Q', 'P * Q' means 'P is the sister of Q', 'P ? Q' means 'P is the mother of Q'. How is X related to Z in X * Y = Z?

Question 10 of 20

According to the fundamental principles of reasoning, why is an un-coded message vulnerable?

Question 11 of 20

Assertion (A): A numerical series where numbers decrease rapidly is generally governed primarily by the subtraction operation. Reason (R): Subtraction naturally causes a normal rate of decrease, whereas division is responsible for a rapid rate of decrease.

Question 12 of 20

If an individual points to a woman and states, 'She is the wife of my father's brother', what is the exact familial designation of this woman to the speaker?

Question 13 of 20

Consider the following statements: I. Marital relationships, indicated by a specific connection symbol, invariably link two individuals within the exact same generational plane. II. The terms 'Sala' and 'Bhabhi' denote individuals linked to the reference person entirely through a chain of marital and sibling connections within the same generation. Which of the statements given above is/are correct?

Question 14 of 20

Assertion (A): If the word 'RAM' is coded strictly using forward alphabetical positions as '18-1-13', then the word 'MAT' must be coded as '13-1-20'. Reason (R): In strict forward alphabetical coding, each letter is uniformly replaced by its exact sequential integer starting from A=1.

Question 15 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 16 of 20

If an individual is examining a family tree and identifies a male relative who is the brother of his wife, what is the appropriate generational designation and term for this man?

Question 17 of 20

The four segments of the Golden Quadrilateral join the following cities: A. Delhi-Mumbai, B. Mumbai-Chennai, C. Chennai-Kolkata, D. Kolkata-Delhi. Consider the length of the above segments in descending order and select the correct answer using the codes given below:

Question 18 of 20

Assertion (A): The 'Saas' (Mother-in-law) is structurally positioned in the exact same generational tier (+1) as the individual's biological mother. Reason (R): She is the mother of the spouse, and since a spouse always resides in the same generation as the reference individual (0), the spouse's parents parallel the individual's parents vertically.

Question 19 of 20

In word substitution, if 'Blue' is coded as 'Black', and 'Black' is coded as 'Green', what is the actual, un-coded color of the sky?

Question 20 of 20

Consider the following assertions regarding the nature of connections within a family diagram: I. The 'Sasur' (Father-in-law) is related to the reference individual primarily through consanguinity (shared bloodline). II. The 'Chacha' (Paternal Uncle) is related to the reference individual primarily through affinity (marital bond). Which of the statements given above is/are factual?

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