Verified by Ajay Kumar
Gaurav invested Rs. 'x' in a scheme offering 10% compound interest for three years. Prem invested Rs. 18,000 in a scheme offering 15% simple interest for four years. Find the interest earned by Gaurav if the interest earned by Prem is Rs. '2x − 1,200'.
Rs. 1,215
Rs. 1,779
Rs. 1,560
Rs. 1,986
Answer: D
Prem's simple interest = \(18000 \times 15 \times 4/100=10800\). Given \(2x-1200=10800\), so \(x=6000\). Gaurav's compound interest = \(6000[(1.10)^3-1]=1986\). The interest earned is Rs. 1,986.
गौरव ने तीन वर्षों के लिए 10% चक्रवृद्धि ब्याज वाली एक योजना में 'x' रुपये का निवेश किया। प्रेम ने चार वर्षों के लिए 15% साधारण ब्याज वाली एक योजना में 18,000 रुपये का निवेश किया। यदि प्रेम द्वारा अर्जित ब्याज '2x − 1,200' रुपये है, तो गौरव द्वारा अर्जित ब्याज ज्ञात कीजिए।
1,215 रुपये
1,779 रुपये
1,560 रुपये
1,986 रुपये
उत्तर: D
प्रेम का साधारण ब्याज = \(18000 \times 15 \times 4/100=10800\)। दिया है \(2x-1200=10800\), अतः \(x=6000\)। गौरव का चक्रवृद्धि ब्याज = \(6000[(1.10)^3-1]=1986\)। अर्जित ब्याज 1,986 रुपये है।
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