6 .
An automobile financier claims to be lending money at simple interest, but he includes interest every six months for calculating principal. If he is charging interest of 10%, the rate of Interest is-

A. | 9.50% | B. | 10.00% |

C. | 10.25% | D. | 10.50% |

7 .
A sum of money at simple interest amounts to Rs. 815 in 3 years and to Rs. 854 in 4 years. The sum is:

A. | 697 Rs. | B. | 698 Rs. |

C. | 699 Rs. | D. | 700 Rs. |

8 .
A sum of money lent out at simple interest amounts to Rs. 720 after 2 years and to Rs. 1020 after a further period of 5 years. The sum is:

A. | 600 Rs. | B. | 610 Rs. |

C. | 620 Rs. | D. | 630 Rs. |

9 .
The rate at which a sum becomes four times of itself in 15 years at S.I., will be:

A. | 17% | B. | 18% |

C. | 19% | D. | 20% |

10 .
If a sum of money at simple interest doubles in 6 years, it will become 4 times in:

A. | 17 years | B. | 18 years |

C. | 19 years | D. | 20 years |

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