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      Question

      The interest received by investing Rs. 3000 for 2 years

      at compound interest of 20% p.a., compounded annually, was re-invested for 3 years at simple interest of 28% p.a. Find the simple interest received.
      A Rs. 1008.8 Correct Answer Incorrect Answer
      B Rs. 1208.8 Correct Answer Incorrect Answer
      C Rs. 1108.8 Correct Answer Incorrect Answer
      D Rs. 1200.8 Correct Answer Incorrect Answer

      Solution

      Compound Interest received = 3000 Γ— {1 + (20/100)}2 – 3000 = 3000 Γ— (12/10)2 – 3000 = 4320 – 3000 = Rs. 1320 Simple interest received = 1320 Γ— 3 Γ— 28 Γ· 100 = Rs. 1108.8

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