686 .
Divide Rs. 6000 into two parts so that simple interest on the first part for 2 years at 6% p.a. may be equal to the simple interest on the second part for 3 years at 8% p.a.

A. | Rs. 4000, Rs. 2000 | B. | Rs. 5000, Rs. 1000 |

C. | Rs. 3000, Rs. 3000 | D. | None of these |

687 .
A sum of money becomes 7/4 of itself in 6 years at a certain rate of simple interest. Find the rate of interest.

A. | 12% | B. | 12(1/2)% |

C. | 8% | D. | 14% |

688 .
If a certain sum of money becomes doubles at simple interest in 12 years, what would be the rate of interest per annum?

A. | 8(1/3) | B. | 10 |

C. | 12 | D. | 14 |

689 .
If a sum of Rs. 13040 is to be repaid in two equal installments at 3(3/4)% per annum, what is the amount of each installment?

A. | 7045 | B. | 8000 |

C. | 65067 | D. | 6889 |

690 .
A milkman sells cow milk at the rate of Rs. 55 litre including a profit 12 per cent. He also sells buffalo milk at the rate of Rs. 36 per litre including a profit of 20%. How much profit will he earn

A. | Rs. 632 | B. | Rs. 624 |

C. | Rs. 646 | D. | Rs. 642 |

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