# IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 367 - 373 of 931

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## Question 367

## Question 368

### Question

MCQ▾If the point (-7, k) is on the graph of the equation find the value of k?

### Choices

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

a. | 5 | |

b. | 10 | |

c. | 20 | |

d. | 15 |

## Question 369

### Question

MCQ▾If the radius of a sphere is doubled, then its volume is increased by________

### Choices

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

a. | ||

b. | ||

c. | ||

d. |

## Question 370

### Question

MCQ▾Volume of a hemisphere is 19404 cubic cm. The total surface area is ________.

### Choices

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

a. | 1386 sq. cm | |

b. | 5544 sq. cm | |

c. | 2772 sq. cm | |

d. | 4158 sq. cm |

## Question 371

### Question

MCQ▾In the given figure, , where A, B and C are points on a circle with center O. then is ________

### Choices

Choice (4) | Response | |
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a. | ||

b. | ||

c. | ||

d. |

## Question 372

### Question

MCQ▾From the adjoining figure, the value of x is ________

### Choices

Choice (4) | Response | |
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a. | ||

b. | ||

c. | ||

d. |

## Question 373

### Question

MCQ▾A cylindrical rod whose height is 8 times of its radius is melted and recast into spherical balls of same radius. The numbers of balls will be________

### Choices

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

a. | 8 | |

b. | 6 | |

c. | 3 | |

d. | 4 |