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      Question

      Mr. P invested Rs. β€˜2x’ in scheme β€˜A’ offering

      simple interest of 25% p.a. and reinvested the interest earned from scheme β€˜A’ at the end of 4 years in scheme β€˜B’ offering compound interest of 20% p.a. compounded annually. If total amount received from scheme β€˜B’ after 2 years is Rs. 8640, then find the value of β€˜12x’.
      A 36000 Correct Answer Incorrect Answer
      B 30000 Correct Answer Incorrect Answer
      C 35000 Correct Answer Incorrect Answer
      D 26000 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      According to question; 1.44 Γ— {0.25 Γ— 4 Γ— 2x} = 8640 Or, {0.25 Γ— 4 Γ— 2x} = 6000 Or, x = 3000 So, 12x = 12 Γ— 3000 = 36000

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