The SI on certain sum of money for 23 months at the rate of 7% per annum exceeds the SI on the same sum at 7% per annum for 19 months by Rs. 672. Then find the sum A. Rs. 18600 B. Rs. 16800 C. Rs. 24400 D. Rs. 28800 Answer Workspace Report Discuss Answer with explanation Answer: Option D Explanation Let the sum be P. —> Then, ((P * 7 * 23)/12 * 100) – ((P * 7 * 19)/ 12 * 100 ) = 672 —> or, 161P – 133P = 672 * 100 * 12 —> P = ((672 * 100 * 12)/28) = Rs. 28800 Workspace
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