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      Question

      A certain sum of money amounts to Rs 1331 in 3 years at

      10 percent compounded annually. Find the sum invested.
      A RS 1050 Correct Answer Incorrect Answer
      B RS 1000 Correct Answer Incorrect Answer
      C RS 1132 Correct Answer Incorrect Answer
      D RS 1100 Correct Answer Incorrect Answer

      Solution

      Given – r =10%, t=3year, A =1331 Let the invested sum =100 The interest of the first year at the rate of 10%=100×10/100=10 1st year  10 2nd year 10        1 3rd year 10        1          1          0.1 Total amount =10+10+10+1+1+1+0.1=33.1 ATQ- 33.1=1331 1=10 And now 100=10×100=1000Rs.

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