SSC GD Constable previous year question
If the difference between compound interest and simple interest on a sum for 3 years at 10% per annum is ₹124, find the principal (in ₹).
Asked in SSC GD Constable 2025: 11 Feb 2025 Shift 2 (Afternoon) · Quantitative Aptitude
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Correct answer: (C) 4000
Using the 3-year CI−SI difference formula, P×(r/100)²×(3+r/100) = 124, solving with r=10% gives P = 4000.
हिंदी में प्रश्न
यदि 10% वार्षिक ब्याज दर से तीन वर्षों के चक्रवृद्धि ब्याज तथा साधारण ब्याज का अंतर ₹124 है, तो मूलधन (₹ में) ज्ञात कीजिए।
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उत्तर और व्याख्या देखें
सही उत्तर: (C) 4000
3 वर्ष के CI−SI अंतर सूत्र, P×(r/100)²×(3+r/100) = 124 का उपयोग कर r=10% रखने पर P = 4000 प्राप्त होता है।
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