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# Comp Interest

### Compound Interest

Question | Answer |
---|---|

At what rate a sum of R1800 will become R2700 in 10 years ? | 5% |

A sum of R1600 lent at 12.5% will become twice in how many years ? | 8 years |

John took a loan for 6 years at 5% .If the total interest paid was R1230, the principal was ? | R4100 |

If R1200 amounts to R1440 in 5 years find the rate of interest | 4% |

If a sum of R1600 gives a simple interest of R252 in two years and 3 months , then the rate is ? | 7% |

In what time will Rs. 72 become Rs.81 at 6 1/4 % ? | 2 years |

A sum of money doubles itself in 5 1/2 years ,in what time will it triple itself ? | 11 years |

At what rate a sum will double itself in 16 years ? | 6 1/4 % |

On retirement a person gets R153 000 which he invests in a scheme at 20% p.a. ,find his monthly income. | R2550 |

Find the sum required to earn a monthly income of R600 at 6% p.a. | R120 000 |

A sum of money amounts to R2520 in 2 years and R2700 in 5 years , find the rate | 2 1/2% |

A sum of money doubles itself in 7 years , in how many years it becomes four fold ? | 21 years |

John lent R8000 to his friend for 3 years at 5% p.a. c.i. ,what amount will John get after 3 years ? | R9261 |

Compute the c.I. on R4000 for 1 1/2 years at 10% p.a. compounded half yearly. | R630.50 |

A sum becomes R1352 in 2 years at 4% C.I. Find the sum. | R1250 |

Find the C.I. that A man will get by investing R3000 for 2 years at 5% p.a. | R307.50 |

Find the C.I. on R400 for 9 months at 6% p.a. compounded quarterly | R18.27 |

In what time will R800 amount to R882 at 5% C.I. ? | 2 years |

What sum of money lent out at C.I. will amount to R968 in 2 years at 10% p.a. ? | R800 |

Find the difference between S.I. and C.I. on R31250 in 2 years at 4% p.a. | R50 |

At what rate (C.I.)will R1000 amount to R1313 in 3 years? | 10% |

A sum of money at C.I. amounts to thrice itself in 3 years . In how many years will it be 9 times of itself ? | 6 years |

In how many years will a sum of R800 amounts to R926.10 at 10% p.a. compounded half yearly ? | 1 1/2 years |

The C.I.on a certain sum for 2 years at 10% p.a. is R420 . Find the S.I. at the same rate for same time | R400 |

Created by:
Lester Stoffels