A certain sum is invested at simple interest at 18% p.a. for two years instead of investing at 12% p.a. for the same time period. Therefore the interest received is more by Rs. 840. Find the sum? A. Rs. 7000 B. Rs. 8500 C. Rs. 8000 D. Rs. 7500 Answer Workspace Report Discuss Answer with explanation Answer: Option A Explanation Let the sum be Rs. x. (x * 18 * 2)/100 – (x * 12 * 2)/100 = 840 36x/100 – 24x/100 =840 12x/100 = 840 x = 7000. Workspace
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