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      Question

      The difference between CI (annual) and SI on a certain

      amount at 15% p.a. for 2 years is Rs. 450. Determine the amount.
      A Rs.20000 Correct Answer Incorrect Answer
      B Rs.25000 Correct Answer Incorrect Answer
      C Rs.30000 Correct Answer Incorrect Answer
      D Rs.27000 Correct Answer Incorrect Answer

      Solution

      Let the sum = Rs. x x(1 + 15/100)┬▓ тАУ x тАУ x ├Ч 15% ├Ч 2 = 450 (115/100)┬▓ = 13225/10000 = 529/400 529x/400 тАУ x тАУ 3x/10 = 450 (529x/400 тАУ 400x/400) тАУ 120x/400 = 450 9x/400 = 450 x = Rs. 20000

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