Numerical: coded arithmetic MCQ — 1 Practice Questions with Answers

Numerical: coded arithmetic is a Reasoning & Mental Ability topic in the RAS/RPSC syllabus. This page gathers exam-style Numerical: coded arithmetic multiple-choice questions with correct answers and explanations, so aspirants can test recall and revise frequently examined concepts.

Practice 1 Numerical: coded arithmetic multiple-choice questions with detailed answers and explanations. Ideal for RAS/RPSC exam preparation.

1 Questions Reasoning & Mental Ability

Reviewed by: Aspirant Academy Editorial Team

Q1. If 9 + 7 = 58 and 3 + 11 = 124, then 13 + 5 is equal to:

A 38 Correct

B 65

C 31

D 36

Explanation

The pattern is not ordinary addition. In each expression, square the second number and then add the first number. Thus 9 + 7 is read as 7 squared plus 9, giving 49 + 9 = 58. Similarly, 3 + 11 gives 121 + 3 = 124. Applying the same rule, 13 + 5 gives 25 + 13 = 38. The values 65, 31, and 36 come from using a different operation and do not match both given examples.

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Numerical: coded arithmetic falls under the Reasoning & Mental Ability section of the RAS/RPSC syllabus. It is a frequently tested area and regular practice with these MCQs will strengthen your preparation.

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