RRB NTPC CBT-1 previous year question
Rajiv invested a certain sum of money at 10% per annum. After 2 years, he received ₹199.5 as compound interest, compounded annually. Find the corresponding simple interest (in ₹) for 2 years at the same rate.
Asked in RRB NTPC 2026 — 18 June Shift 3 · Quantitative Aptitude
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Correct answer: (B) 190
Compound interest for 2 years at 10% gives P x [(1.1)2−1] = P x 0.21 = 199.5, so P = 950. Simple interest for 2 years at the same rate = P x 10 x 2/100 = 950 x 0.2 = Rs.190.
हिंदी में प्रश्न
राजीव एक निश्चित राशि 10% वार्षिक दर पर निवेश करता है। 2 वर्षों के बाद, उसे चक्रवृद्धि ब्याज (वाषिक रूप से संयोजित) के रूप में ₹199.5 प्राप्त होते हैं। समान ब्याज दर पर 2 वर्षों के लिए संगत साधारण ब्याज (₹ मै) ज्ञात Hie!
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सही उत्तर: (B) 190
10% पर 2 वर्ष का चक्रवृद्धि ब्याज P x [(1.1)2−1] = P x 0.21 = 199.5 देता है, अतः P = 950। इसी दर पर 2 वर्ष का साधारण ब्याज = P x 10 x 2/100 = 950 x 0.2 = ₹190।
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