जय तथा विजय ने एक ही दुकान से एक ही प्रकार के कुछ पेन और विशेष पेंसिलें खरीदने के लिए समान धनराशि खर्च की । यदि जय ने 3 पेन और 5 पेंसिलें खरीदीं, और विजय ने 2 पेन और 7 पेंसिलें खरीदीं, तो निम्नलिखित में से कौन-सा सही है ?
Read this question in English
Jay and Vijay spent an equal amount of money to buy some pens and special pencils of the same quality from the same store. If Jay bought 3 pens and 5 pencils, and Vijay bought 2 pens and 7 pencils, then which one of the following is correct?
(a) A pencil costs more than a pen · (b) The price of a pencil is equal to that of a pen · (c) The price of a pen is two times the price of a pencil · (d) The price of a pen is three times the price of a pencil
उत्तर और व्याख्या · explanation in English
Answer: (c) पेन का मूल्य, पेंसिल के मूल्य से दुगुना है
Both spent the same, so 3 pens + 5 pencils cost as much as 2 pens + 7 pencils. Cancelling the common items leaves 1 pen = 2 pencils.
- Equal spending: 3 pens + 5 pencils = 2 pens + 7 pencils.
- Remove 2 pens and 5 pencils from both sides: 1 pen = 2 pencils.
- So a pen costs twice as much as a pencil.
Remember · With equal totals, cancel what both sides share — the leftovers must balance.
Question and answer: UPSC's official GS Paper II (2021, Series A) — paper ↗ · answer key ↗. Explanation: Minimalist IAS, checked 30 Sept 2026 (how we verify). ·