एक व्यक्ति ₹ 3,330 में तीन वस्तुएँ P, Q और R खरीदता है। यदि P की कीमत R से 25% अधिक है और R की कीमत Q से 20% अधिक है, तो P की कीमत क्या है?
Read this question in English
A person buys three articles P, Q and R for ₹3,330. If P costs 25% more than R and R costs 20% more than Q, then what is the cost of P?
(a) ₹1,000 · (b) ₹1,200 · (c) ₹1,250 · (d) ₹1,350
उत्तर और व्याख्या · explanation in English
Answer: (d) ₹ 1,350
Take Q’s cost as 100: R costs 120 and P costs 150, a total of 370 units. As 370 units = ₹3,330, one unit = ₹9, so P costs 150 × 9 = ₹1,350.
- Let Q = 100. R is 20% more: 120. P is 25% more than R: 150.
- Total = 100 + 120 + 150 = 370 units = ₹3,330, so 1 unit = ₹9.
- P = 150 × 9 = ₹1,350.
- Check: Q = ₹900, R = ₹1,080, P = ₹1,350, and 900 + 1,080 + 1,350 = 3,330.
Remember · Chain the percentages from the cheapest item taken as 100, then scale to the given total.
Question and answer: UPSC's official GS Paper II (2024, Series A) — paper ↗ · answer key ↗. Explanation: Minimalist IAS, checked 30 Sept 2026 (how we verify). ·