# IMO Level 1- Mathematics Olympiad (SOF) Class 5: Questions 457 - 462 of 838

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## Question number: 457

### Question

What is the instrument used to measure wind speed?

### Choices

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

a. | Anemometer | |

b. | Rain gauge | |

c. | Barometer | |

d. | None of the above |

## Question number: 458

### Question

Paul had rupees 189. He spent rupees 45.87 of it on a radio and rupees 0.78 on a drink. How much money is left with him?

### Choices

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

a. | 144.35 rupees | |

b. | 145.35 rupees | |

c. | 143.35 rupees | |

d. | 142.35 rupees |

## Question number: 459

### Question

How many degrees in a full rotation?

### Choices

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

a. | 360 | |

b. | 180 | |

c. | 90 | |

d. | 45 |

## Question number: 460

» Geometry

### Question

What is the total area of the shaded parts in the given figure if area of each is follow 9 cm^{2}?

### Choices

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

a. | 36 sq. cm | |

b. | 55 sq. cm | |

c. | 252 sq. cm | |

d. | 150 sq. cm |

## Question number: 461

» Geometry

### Question

The shaded part in the figure below is covered with cement. If it cost rupees 80 to cement an area of 5 cm^{2}, find the total cost of cementing.

### Choices

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

a. | 4560 Rs. | |

b. | 2120 Rs. | |

c. | 2250 Rs. | |

d. | 5460 Rs. |

## Question number: 462

### Question

How many triangles can be drawn using any three dots (arranged in position as given)?

### Choices

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

a. | 3 | |

b. | 7 | |

c. | 6 | |

d. | 4 |