SBI PO Prelims practice question
A trader's bill of face value F, due 6 months hence, was originally to be discounted immediately at 5% per annum banker's rate. Instead, he increases the bill amount by 25% (raising a fresh bill for the higher amount, still due 6 months hence) and gets it discounted at 8% per annum. As a result, the cash he receives increases by Rs. 7,200 compared to what he would have received from the original bill. Find the original face value F.
From a SBI PO Prelims Quantitative Aptitude practice set · Quantitative Aptitude
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Correct answer: (C) Rs. 32,000
T = 6/12 year. Original proceeds = F(1 − R1×T/100) = F(1 − 5×6/1200) = F × 0.975. New face value = 1.25F, new proceeds = 1.25F(1 − R2×T/100) = 1.25F × 0.96. Difference: 1.25F×0.96 − F×0.975 = 7,200. This simplifies to F×[1.2 − 0.975] = 7,200, i.e. F × 0.225 = 7,200, giving F = Rs. 32,000. (Check: original proceeds = Rs. 31,200, new proceeds = Rs. 38,400, difference = Rs. 7,200. ✓)
हिंदी में प्रश्न
एक व्यापारी का Rs. F अंकित मूल्य का बिल, जो 6 महीने बाद देय है, मूल रूप से तुरंत 5% वार्षिक बैंकर्स दर पर भुनाया जाना था। इसके बजाय, वह बिल राशि को 25% बढ़ा देता है (उतनी ही अवधि 6 महीने के लिए एक नया, बड़ा बिल तैयार करता है) और उसे 8% वार्षिक दर पर भुनवाता है। परिणामस्वरूप, उसे मूल बिल की तुलना में Rs. 7,200 अधिक नकद प्राप्त होते हैं। मूल अंकित मूल्य F ज्ञात करें।
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सही उत्तर: (C) Rs. 32,000
T = 6/12 वर्ष। मूल प्राप्ति = F(1 − R1×T/100) = F × 0.975। नया अंकित मूल्य = 1.25F, नई प्राप्ति = 1.25F × 0.96। अंतर: 1.25F×0.96 − F×0.975 = 7,200। सरल करने पर F×[1.2 − 0.975] = 7,200, अर्थात F × 0.225 = 7,200, जिससे F = Rs. 32,000 प्राप्त होता है। (जाँच: मूल प्राप्ति = Rs. 31,200, नई प्राप्ति = Rs. 38,400, अंतर = Rs. 7,200। ✓)
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