Reasoning : Logical Reasoning & Analytical Ability

Q 152 / 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.

C is studying in:

EXPLANATION

Correct Option (2)

: Rajasthan

To determine where C is studying, we systematically deduce the associations between students, cities, colleges, and states based on the given clues:

  1. Clue (2) states that Arts College is located in City S, which is in Rajasthan.
  2. Clue (3) indicates that A is studying in Commerce College.
  3. Clue (4) specifies that B is studying in City Q.
  4. Clue (1) states that D is studying in Assam.
  5. Given that A, B, and D are associated with specific colleges, cities, or states, C must be the student associated with the remaining set. From clue (2), the complete set (City S, Arts College, Rajasthan) is available. Therefore, C is studying in Arts College, located in City S, Rajasthan.

Thus, C is studying in Rajasthan.

Incorrect Options:

Based on the deductions:

  • Option 1: Science College

    Clue (5) states that Science College is located in Kerala. Since B is studying in City Q (Clue 4) and C is in City S (deduced), B is the student studying in Science College, Kerala. Therefore, C is not studying in Science College.

  • Option 3: Gujarat

    A is studying in Commerce College (Clue 3). With C in Rajasthan, B in Kerala (Science College), and D in Assam, the only remaining state for A's Commerce College is Gujarat. Therefore, A is studying in Gujarat, not C.

  • Option 4: City Q

    Clue (4) explicitly states that B is studying in City Q. As deduced, C is studying in City S. Therefore, C is not studying in City Q.