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      Question

      CI (compounded yearly) exceeds SI on a sum for 2 years

      at 8% p.a. by Rs. 160. Find the sum.
      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 + 8/100)┬▓ тАУ x тАУ x ├Ч 8% ├Ч 2 = 160 (108/100)┬▓ = 11664/10000 = 729/625 So, 729x/625 тАУ x тАУ 4x/25 = 160 (729x/625 тАУ 625x/625) тАУ 100x/625 = 160 4x/625 = 160 x = Rs. 25000

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