Reasoning : Logical Reasoning & Analytical Ability

Q 154 / 325

UPSC CSE Prelims 2018

A, B, C and D are students. They are studying in four different cities, namely in P, Q, R and S (not necessarily in that order). They are studying in Science college, Arts college, Commerce college and Engineering college (not necessarily in that order), which are situated in four different states, such as Gujarat, Rajasthan, Assam and Kerala (not necessarily in that order). Further, it is given that

  1. D is studying in Assam.
  2. Arts College is located in city S which is in Rajasthan.
  3. A is studying in Commerce college.
  4. B is studying in city Q.
  5. Science college is located in Kerala.

Which one of the following statements is correct?

EXPLANATION

Correct Option

Based on the given information, a structured deduction can be made:

  • Clue 2 states that Arts College is located in city S, which is in Rajasthan.
  • Clue 4 states B is studying in city Q.
  • Clue 1 states D is studying in Assam.
  • Clue 3 states A is studying in Commerce college.
  • Clue 5 states Science college is located in Kerala.

From these clues, it can be established that C is studying in Arts College in city S, Rajasthan (as A is in Commerce, B is in Q, and D is in Assam). Consequently, D cannot be studying in city S, as city S is occupied by C. Therefore, the statement "D is not studying in city S" is correct.

Incorrect Options

  • Option 2: A is studying in Science college.

    Clue 3 explicitly states that A is studying in Commerce college. Furthermore, based on deductions, B is studying in Science college located in Kerala. Thus, this statement is incorrect.

  • Option 3: A is studying in Kerala.

    From the deductions, A is studying in Commerce college, which is located in Gujarat. B is the student studying in Kerala (Science college). Thus, this statement is incorrect.

  • Option 4: Engineering college is located in Gujarat.

    Based on the complete set of deductions, D is studying in Engineering college, which is located in Assam. A is studying in Commerce college, which is located in Gujarat. Thus, Engineering college is not located in Gujarat.