# IMO Level 1- Mathematics Olympiad (SOF) Class 7: Questions 23 - 29 of 1022

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## Question 23

### Question

MCQ▾The average of the two middle rational numbers if are arranged in descending order is________.

### Choices

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

a. | 6 | |

b. | 1 | |

c. | 4 | |

d. | 5 |

## Question 24

### Question

MCQ▾If p: When a positive integer and a negative integer are added we always get a negative integer.

q: When two negative integers are added, we get a positive integer, then

### Choices

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

a. | P and q are true | |

b. | P and q are false | |

c. | p is false and q is true | |

d. | P is true and q is false |

## Question 25

### Question

MCQ▾Which integer is the additive inverse of itself?

### Choices

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

a. | 1 | |

b. | 0 | |

c. | 2 | |

d. | 3 |

## Question 26

### Question

MCQ▾The value of, where is absolute value of an integer is________.

### Choices

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

a. | 2 | |

b. | 0 | |

c. | 3 | |

d. | 1 |

## Question 27

### Question

MCQ▾Which pair of numbers does not have a product equal to 45?

### Choices

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

a. | ||

b. | ||

c. | ||

d. |

## Question 28

### Question

MCQ▾A tank contains 500 liters of water. Due to a small hole in the tank, the quantity of water is decreasing at the rate of 9 liters every hour. What will be the quantity of the water in the tank after 10 hours?

### Choices

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

a. | 491 liters | |

b. | 400 liters | |

c. | 410 liters | |

d. | 90 liters |

## Question 29

### Question

MCQ▾For any two rational numbers x and y which of the following are correct, if x is positive and y is negative?

1. X < Y 2. X = Y 3. X > Y

### Choices

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

a. | Only 1 and 2 are correct | |

b. | Only 3 is correct | |

c. | Only 2 and 3 are correct | |

d. | Question does not provide sufficient data or is vague |