UPSC Prelims 2004 Q99: Science & Technology – Logical Reasoning & Puzzles
- (a) Edited by Feroz
- (b) Edited by Gurbakhsh
- (c) Published by Bharat Publishers
- (d) Published by Charan Publishers
Answer: (a) Edited by Feroz
Explanation
Logic puzzle: the sports magazine
| Clue | Deduction |
|---|---|
| Feroz's magazine | Published by Dev (i); it cannot be politics (Aryan), films (Swami) or science (Ila) |
| So | Feroz edits the sports magazine, published by Dev |
Four magazines on politics, sports, science and films are edited by Feroz, Gurbaksh, Swami and Ila and published by Aryan, Bharat, Charan and Dev Publishers (not necessarily in that order), with these clues: (i) Dev Publishers published the magazine edited by Feroz; (ii) the politics magazine is published by Aryan; (iii) the films magazine is edited by Swami and is not published by Charan; (iv) the science magazine is edited by Ila. Feroz's magazine can only be the sports magazine, so the sports magazine is edited by Feroz.
Answer: (a) Edited by Feroz.
Why each option is right or wrong
- (a) CORRECT. The sports magazine is edited by Feroz.
- (b) Incorrect. Gurbaksh edits the politics magazine.
- (c) Incorrect. Bharat publishes the films magazine.
- (d) Incorrect. Charan publishes the science magazine.
Key point
Eliminate subjects for Feroz using the other clues.
Remember
The sports magazine is edited by Feroz and published by Dev.
Common mistakes
- Mixing the editor with the publisher column.
- Assuming that Gurbaksh edits sports.
- Forgetting that Dev publishes Feroz's magazine.
Exam tip
The magazine left over for the last editor is the answer.
Sources
- R. S. Aggarwal — A Modern Approach to Verbal and Non-Verbal Reasoning (Puzzle Test)
- Arun Sharma — How to Prepare for Logical Reasoning for the CAT (arrangement and matching puzzles)