RRB Technician Grade 3 practice question
In how many years will ₹30,400 become ₹47,500 at 25% per annum compound interest, compounded annually?
From a RRB Technician Grade 3 Quantitative Aptitude practice set · Quantitative Aptitude
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Correct answer: (D) 2 years
A/P = ₹47,500/₹30,400 = 25/16 = (5/4)2, and 1 + 25/100 = 5/4. Matching powers, n = 2 years. (The SI estimate (A − P) × 100/(P × r) = 2.25 is not the CI answer.)
हिंदी में प्रश्न
₹30,400 की राशि 25% वार्षिक चक्रवृद्धि ब्याज की दर से (वार्षिक संयोजन) कितने वर्षों में ₹47,500 हो जाएगी?
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (D) 2 वर्ष
A/P = ₹47,500/₹30,400 = 25/16 = (5/4)2, और 1 + 25/100 = 5/4। घातों का मिलान करने पर n = 2 वर्ष। (साधारण ब्याज का अनुमान (A − P) × 100/(P × r) = 2.25 चक्रवृद्धि उत्तर नहीं है।)
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