# IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 924 - 931 of 931

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## Question 924

### Question

MCQ▾The measures of two complementary angles are represented by . What is the value of x?

### Choices

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

a. | 20 | |

b. | 10 | |

c. | 40 | |

d. | 30 |

## Question 925

### Question

MCQ▾A cloth merchant has announced 20 % rebate in prices. If one needs to have a rebate of ₹ 400, then now many shirts each costing ₹ 800, he should purchase?

### Choices

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

a. | 30 | |

b. | 40 | |

c. | 20 | |

d. | 10 |

## Question 926

### Question

MCQ▾If the perimeter of a rectangular garden plot is 400 meters. The length of a rectangular field is thrice its breadth, what is the length of field?

### Choices

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

a. | 145 m | |

b. | 125 m | |

c. | 100 m | |

d. | 150 m |

## Question 927

## Question 928

### Question

MCQ▾Two points with coordinate (2,3) , (6,3) and (-4,3) lie on a line, parallel to which axis?

### Choices

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

a. | Y-axis | |

b. | X-axis | |

c. | Z-axis | |

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

## Question 929

### Question

MCQ▾In the figure, the value of x if PQ || ₹ , Also find x

### Choices

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

a. | ||

b. | ||

c. | ||

d. |

## Question 930

### Question

MCQ▾Let a and b be real numbers such that , and Find

### Choices

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

a. | 13 | |

b. | 10 | |

c. | 20 | |

d. | 16 |

## Question 931

### Question

MCQ▾Find all the natural number n such that is a perfect Square.

### Choices

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

a. | 9 | |

b. | 20 | |

c. | 10 | |

d. | 11 |