661 .
A sum of Rs. 1,440 is lent out in three parts in such a way that the interest on first part at 2% for 3 years, second part at 3% for 4 years and third part at 4% for 5 years are equal. Then the differ

A. | Rs. 400 | B. | Rs. 560 |

C. | Rs. 460 | D. | Rs. 200 |

662 .
A sum of Rs. 18,750 is left by will by a father to be divided between two sons, 12 and 14 years of age, so that when they attain maturity at 18, the amount (principal + interest) received by each at 5

A. | Rs. 9,500, Rs. 9,250 | B. | Rs. 8,000, Rs. 1,750 |

C. | Rs. 9,000, Rs. 9,750 | D. | None of these |

663 .
Pratibha invests an amount of Rs. 15,860 in the names of her three daughters A, B and C in such a way that they get the same interest after 2, 3 and 4 years, respectively. If the rate of simple intere

A. | (1/15): (1/10): (1/20) |

B. | (1/10): (1/15): (1/20) |

C. | (1/15): (1/20): 10 |

D. | None of these |

664 .
What should be the least number of years in which the simple interest on Rs. 2,600 at 6(2/3)% will be an exact number of rupees?

A. | 2 | B. | 3 |

C. | 4 | D. | 5 |

665 .
An automobile financier claims to be lending money at simple interest, but he includes the interest every six months for calculating the principal. If he is charging an interest of 10%, the effective

A. | 10% | B. | 10.25% |

C. | 10.5% | D. | None of these |

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