# IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 217 - 222 of 931

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## Question 217

### Question

MCQ▾Triangle PAB is formed by three tangents to circle with center O and , then angle ACB equals ________

### Choices

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

a. | ||

b. | ||

c. | ||

d. |

## Question 218

### Question

MCQ▾An exterior angle of a triangle is and the measure of the two remote interior angles are 25 degree and degree. x = ________.

### Choices

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

a. | 24 | |

b. | 29 | |

c. | 20 | |

d. | 25 |

## Question 219

### Question

MCQ▾The number of spherical bullets each 0.6 cm in diameter be made out of a rectangular solid is ________

### Choices

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

a. | 10250 | |

b. | 10200 | |

c. | 10500 | |

d. | 10550 |

## Question 220

### Question

MCQ▾A rectangle is divided into four smaller rectangles, as shown in the figure. Three of them have areas , and as indicated. Then the area of the shaded rectangle is ________

### Choices

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

a. | ||

b. | ||

c. | ||

d. |

## Question 221

### Question

MCQ▾In , If divides BC in the ratio , then is ________

### Choices

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

a. | m: 3n | |

b. | m: n | |

c. | 2m: n | |

d. | 3m: n |

## Question 222

### Question

MCQ▾The number of bullets that can be made out of a cube of lead whose edge measures 33 cm, each bullet being 4 cm in diameter is ________.

### Choices

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

a. | 2072 | |

b. | 1072 | |

c. | 5072 | |

d. | 3072 |