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A sum of money lent out at C.I. at a certain rate per annum becomes three times of itself in 8 years. Find in how many years will the money become twenty-seven times of itself at the same rate of interest p.a.

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The correct Answer is:
30 years
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ICSE-COMPOUND INTEREST (USING FORMULA)-EXERCISE 3(D)
  1. The value of an article decreased for two years at the rate of 10% per...

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  2. According to a census taken towards the end of the year 2009, the popu...

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  3. The population of a town decreased by 12% during 1998 and then increas...

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  4. A sum of money, invested at compound interest, amounts to Rs 16,500 in...

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  5. The difference between C.I. and S.I. on Rs 7,500 for two years is Rs 1...

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  6. A sum of money lent out at C.I. at a certain rate per annum becomes th...

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  7. Mr. Sharma borrowed a certain sum of money at 10% per annum compounded...

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  8. The difference between compound interest for a year payable half-yearl...

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  9. The ages of Pramod and Rohit are 16 years and 18 years respectively. I...

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  10. The cost of a machine is supposed to : depreciate each year by 12% of ...

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  11. The cost of a machine is supposed to : depreciate each year by 12% of ...

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  12. The value of an article decreased for two years at the rate of 10% per...

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  13. According to a census taken towards the end of the year 2009, the popu...

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    |

  14. The population of a town decreased by 12% during 1998 and then increas...

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    |

  15. A sum of money, invested at compound interest, amounts to Rs 16,500 in...

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  16. The difference between C.I. and S.I. on Rs 7,500 for two years is Rs 1...

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  17. A sum of money lent out at C.I. at a certain rate per annum becomes th...

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  18. Mr. Sharma borrowed a certain sum of money at 10% per annum compounded...

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  19. The difference between compound interest for a year payable half-yearl...

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  20. The ages of Pramod and Rohit are 16 years and 18 years respectively. I...

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