**Q8.** Abhay lent Rs. 8000 to his friend for 3 years at the rate of 5% per annum compound interest. What amount does Abhay get after 3 years?

A. Rs. 9421 |
B. Rs. 9321 |

C. Rs. 9161 |
D. Rs. 9261 |

**Q9.** Find the compound interest at the rate of 10% per annum for four years on the principal which in four years at the rate of 4% per annum gives Rs. 1600 as simple interest.

A. Rs. 4641 |
B. Rs. 4732 |

C. Rs. 4321 |
D. Rs. 4899 |

**Q10.** Under the electrification programme of villages, the government could electrify 5% and 10% of villages respectively in two years. If the number of villages without electricity was 25000 two years ago, how many villages are without electricity now?

A. 23750 |
B. 21375 |

C. 22564 |
D. 20154 |

**Q11.** A sum of money doubles itself at compound interest in 2 years. In how many years will it becomes eight times?

A. 4 years |
B. 5 years |

C. 6 years |
D. 7 years |

**Q12.** Jack deposited in a bank Rs. 7500 for 6 months at the rate of 8% interest compounded quarterly. Find the amount he received after 6 months?

A. Rs. 7600 |
B. Rs. 7632 |

C. Rs. 7421 |
D. Rs. 7803 |

**Q13.** Mike bought a refrigerator for Rs. 4000 on credit. The rate of interest for the first year is 5% and of the second year is 15%. How much will it cost him if he pays the amount after two years?

A. Rs. 4830 |
B. Rs. 4930 |

C. Rs. 4463 |
D. Rs. 4630 |