# IMO- Mathematics Olympiad Class 8: Questions 866 - 869 of 1029

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## Question number: 866

Appeared in Year: 2012

### Question

The volume of a cylinder is 48.125 which is formed by rolling a rectangular paper sheet along the length of the paper. If a cuboidal box (without any lid i. e. open at the top) is made from the same sheet of paper by cutting out the square of side 0.5 cm from each of the four corners of the paper sheet, then what is the volume of the box?

### Choices

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

a. |
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b. |
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c. |
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d. | All of the above |

## Question number: 867

### Question

The present age of a father is 3 years more than three times the age of his son. Three years hence, father’s age will be 10 years more than twice the age of the soon. Find the present age of the father.

### Choices

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

a. | 30 years | |

b. | 45 years | |

c. | 40 years | |

d. | 33 years |

## Question number: 868

Appeared in Year: 2012

### Question

For a journey the cost of a child ticket is one third of the cost of an adult ticket. If the cost of the tickets for 4 adults and 5 children is Rs. 85, the cost of a child ticket is ________.

### Choices

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

a. | Rs. 20 | |

b. | Rs. 15 | |

c. | Rs. 10 | |

d. | Rs. 5 |

## Question number: 869

Appeared in Year: 2012

### Question

Nita walks from her house 160 meters north and from there 630 meters west to visit her friend. While coming back, she walked diagonally from her friend’s house, back to her home. What distance did she walk while returning?

### Choices

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

a. | 650 meter | |

b. | 600 meter | |

c. | 450 | |

d. | 500 meter |