RRB NTPC CBT-1 previous year question
The marked price of a refrigerator is ₹4,884. The shopkeeper allows a discount of 10% and gains 8%. If no discount is allowed, his gain percentage would be:
Asked in RRB NTPC 2026 — 15 June Shift 3 · Quantitative Aptitude
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Correct answer: (A) 20%
SP after 10% discount = 4884×0.9=4395.6. Since this gives an 8% gain, CP=4395.6/1.08=4070. Without discount, SP=4884, so gain% = (4884-4070)/4070×100 = 20%.
हिंदी में प्रश्न
एक रेफ़्रिजरेटर का अंकित मूल्य ₹4,884 Sl दुकानदार 10% की छूट प्रदान करता है और 8% का लाभ अर्जित करता है। यदि कोइ छूट नहीं दी जाती है, तो उसका लाभ प्रतिशत कितना होगा?
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (A) 20%
10% छूट के बाद SP = 4884×0.9=4395.6। चूँकि इससे 8% लाभ होता है, CP=4395.6/1.08=4070। बिना छूट के, SP=4884, अतः लाभ% = (4884-4070)/4070×100 = 20% है।
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