SSC GD Constable previous year question
If the difference between compound interest and simple interest for three years, at an annual interest rate of 10%, is ₹93, find the principal (in ₹).
Asked in SSC GD Constable 2025: 11 Feb 2025 Shift 1 (Morning) · Quantitative Aptitude
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Correct answer: (B) 3000
For 3 years at rate r%, (CI−SI) = P[(1+r/100)³ − 1 − 3r/100]. For r=10%: factor = 0.031. So P = 93/0.031 = 3000.
हिंदी में प्रश्न
यदि 10% वार्षिक ब्याज दर से तीन वर्षों के चक्रवृद्धि ब्याज तथा साधारण ब्याज का अंतर ₹93 है, तो मूलधन (₹ में) ज्ञात कीजिए।
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (B) 3000
3 वर्ष और दर r% के लिए, (CI−SI) = P[(1+r/100)³ − 1 − 3r/100]। r=10% के लिए गुणांक = 0.031। अतः P = 93/0.031 = 3000।
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