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Ratio and Proportion Page 2

6. The ratio of the cost of two books is 3:5. If the cost of first book is 4.80 rupee, then what is the cost of the second one? |

A. Rs. 8 |

B. Rs. 9 |

C. Rs. 11 |

D. Rs. 5 |

7. A box contains rupee, fifty paise and twenty five paise coins whose values are in the proportion of 2:3:4. if the total number of coins are 480 find the value of each coins and total amount in rupees. |

A. 40, 60, 80 and 180 |

B. 40, 60, 90 and 150 |

C. 20, 40, 60, and 650 |

D. None of these. |

8. Ratio of earnings of Ram and Bimal is 8:9 respectively. if the earnings of Ram increased by 50% and the earnings of Bimal decrease by 25%; then the new ratio of their earnings becomes 16:9 respectively. What is the earning of Ram. |

A. 450 |

B. 500 |

C. 700 |

D. Cannot be determined. |

9. The ratio of the present ages of priya aand her son is 5:2 respectively. Seven years hence, the ratio will be 2:1 . What was the age of priya when her son was born? |

A. 20 years |

B. 25 years |

C. 23 years |

D. 21 years |

10. Three fourth of a number is equal to 20% of another number. What is the ratio of the first number to the second number? |

A. 3:10 |

B. 5:8 |

C. 4:15 |

D. 9:8 |