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UPSC 1998: A man purchases two clocks A and B at a total cost of Rs 650. He sells A with 20% profit and B at a loss of 25% and gets the same selling price for both the clocks. What are the purchasing prices of A and B respectively?
(a)Rs 225; Rs 425
(b)Rs 250; Rs 400
(c)Rs 275; Rs 375
(d)Rs 300; Rs 350
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Not attemptedCorrect Answer: (b) Rs 250; Rs 400
Let the cost prices be Rs x (clock A) and Rs (650 − x) (clock B). 1.2 x = 0.75 (650 − x) ⇒ x = Rs 250, so B cost = Rs 400. Hence option (b) is correct. ([scribd.com](https://www.scribd.com/document/731910048/1998))
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Frequently Asked Questions
What is the correct answer to this UPSC 1998 Science & Technology question?▼
The correct answer is option (b): Rs 250; Rs 400. Watch the detailed video explanation in our Sherlocking Prelims course on UnlockIAS.
Which year was this Quantitative Aptitude question asked in UPSC Prelims?▼
This question was asked in UPSC CSE Prelims 1998, GS Paper 1, as Question 134. It falls under Science & Technology > Quantitative Aptitude.
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 Quantitative Aptitude?▼
UPSC has asked 178 questions from Quantitative Aptitude (under Science & Technology) across multiple years. Visit the topic page to see the full list and year-wise trends.