# Ratio and Proportion (IMO- Mathematics Olympiad Class 6): Questions 77 - 80 of 80

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## Question number: 77

» Ratio and Proportion

### Question

The monthly salary of A, B, C is in the proportion of 2: 3: 5. If C’s monthly salary is Rs. 1200 more than that of A, then B’s annual salary is

### Choices

Choice (4) | Response | |
---|---|---|

a. | Rs. 14400 | |

b. | Rs. 2000 | |

c. | Rs. 24000 | |

d. | Rs. 1200 |

## Question number: 78

» Ratio and Proportion

### Question

A certain amount was divided between Mona and Sona in the ratio 5: 7. If Sona’s share was Rs. 3500, then the amount is

### Choices

Choice (4) | Response | |
---|---|---|

a. | Rs. 5500 | |

b. | Rs. 6000 | |

c. | Rs. 7600 | |

d. | All of the above |

## Question number: 79

» Ratio and Proportion

### Question

In a plate of colors, the ratio of white colors to black colors is 6: 7. If 21 are black colors, then the number of white colors is

### Choices

Choice (4) | Response | |
---|---|---|

a. | 14 | |

b. | 12 | |

c. | 27 | |

d. | 18 |

## Question number: 80

» Ratio and Proportion

### Question

Share of A, B and C is ________, if Rs. is divided in .

### Choices

Choice (4) | Response | |
---|---|---|

a. | Rs. 870, Rs. 2300, Rs. 2500 | |

b. | Rs. 2610, Rs. 870, Rs. 2610 | |

c. | Rs. 2700, Rs. 870, Rs. 2700 | |

d. | Rs. 2580, Rs. 830, Rs. 2580 |