RRB NTPC CBT-1 previous year question
A shopkeeper sells an article to A at a profit of 20%. A sells it to B at a profit of 25%. If B pays ₹3,000, what is the cost price of the article for the shopkeeper?
Asked in RRB NTPC 2026 — 16 June Shift 3 · Quantitative Aptitude
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Correct answer: (D) ₹2,000
Working backward: Shopkeeper's CP × 1.20 (to A) × 1.25 (to B) = ₹3000, so CP = 3000/(1.20×1.25) = ₹2,000.
हिंदी में प्रश्न
एक दुकानदार, A को एक वस्तु 20% के लाभ पर बेचता है। A उसे 25% को 25% के लाभ पर बेचता el यदि ₹3,000 इसके लिए ₹3,000 का भुगतान करता है, तो दुकानदार के लिए वस्तु का क्रय मूल्य क्या है?
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (D) ₹2,100
पीछे से गणना करने पर: दुकानदार का CP × 1.20 (A को) × 1.25 (B को) = ₹3000, अतः CP = 3000/(1.20×1.25) = ₹2,000 है।
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