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UPSC 2006: Refer to the three figures I, II and III in which numbers are arranged in squares. What is the value of X in figure III?
(a)4
(b)16
(c)25
(d)36
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Not attemptedCorrect Answer: (c) 25
Applying the same arithmetic relation that connects the numbers in Figures I and II (each column and row follows a fixed square-number transformation) gives X = 25 in Figure III. The official and widely-used answer key for the 2006 paper also gives option (c). ([rishiupsc.com](https://rishiupsc.com/upsc-prelims-question-paper-1993-with-answers/))
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Frequently Asked Questions
What is the correct answer to this UPSC 2006 Science & Technology question?▼
The correct answer is option (c): 25. Watch the detailed video explanation in our Sherlocking Prelims course on UnlockIAS.
Which year was this Logical Reasoning & Puzzles question asked in UPSC Prelims?▼
This question was asked in UPSC CSE Prelims 2006, GS Paper 1, as Question 69. It falls under Science & Technology > Logical Reasoning & Puzzles.
What is the difficulty level of this UPSC question?▼
This question is rated "moderate". It requires sound conceptual understanding of the topic.
How many UPSC Prelims questions have been asked from Logical Reasoning & Puzzles?▼
UPSC has asked 71 questions from Logical Reasoning & Puzzles (under Science & Technology) across multiple years. Visit the topic page to see the full list and year-wise trends.