# IMO Level 1- Mathematics Olympiad (SOF) Class 10: Questions 466 - 472 of 968

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## Question 466

### Question

MCQ▾In rhombus ABCD, = ________

### Choices

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

b. | ||

c. | ||

d. |

## Question 467

### Question

MCQ▾The area of a triangle is 5 square units, two of its vertices are . The third vertex lies on . What will be the third vertex?

### Choices

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

b. | ||

c. | ||

d. |

## Question 468

### Question

MCQ▾The average temperatures of Tuesday, Wednesday and Thursday was . The average temperature of Wednesday, Thursday and Friday was . If the temperature on Tuesday was , then the temperature on Friday was ________.

### Choices

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

b. | ||

c. | ||

d. |

## Question 469

### Question

MCQ▾The algebraic sum of the deviations of a frequency distribution from its mean is ________

### Choices

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

a. | 0 | |

b. | A non-zero number | |

c. | Always positive | |

d. | Always negative |

## Question 470

### Question

MCQ▾The mean of 10 observations is . if each observation is multiplied by 2, then what is the new mean?

### Choices

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

a. | 15 | |

b. | 16 | |

c. | 17 | |

d. | 11 |

## Question 471

### Question

MCQ▾The distance between the points is ________

### Choices

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

b. | ||

c. | ||

d. |

## Question 472

### Question

MCQ▾If are the midpoints of the sides of , the area of the triangle is ________

### Choices

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

a. | 29 sq. units | |

b. | 44 sq. units | |

c. | 55 sq. units | |

d. | 35 sq. units |