# IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 321 - 327 of 931

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## Question 321

### Question

MCQ▾If in the following image angle PQR is 110˚ then what would be the angle PSR?

### Choices

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

a. | 120˚ | |

b. | 170˚ | |

c. | 140˚ | |

d. | 150˚ |

## Question 322

### Question

MCQ▾If the purple angle is 40˚ and the yellow one is 30˚ what is the measure of aqua angle?

### Choices

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

a. | 110˚ | |

b. | 120˚ | |

c. | 130˚ | |

d. | 140˚ |

## Question 323

### Question

MCQ▾What change in percent is made in the area of a rectangle by increasing its length by and breadth by ?

### Choices

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

a. | ||

b. | ||

c. | ||

d. |

## Question 324

### Question

MCQ▾In the figure, AD is the bisector of of , then ________

### Choices

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

a. | ||

b. | ||

c. | ||

d. |

## Question 325

### Question

MCQ▾The distance between the points P (5,3) and Q (5,6) is calculated as

### Choices

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

a. | 4 | |

b. | 3 | |

c. | -3 | |

d. | -4 |

## Question 326

### Question

MCQ▾If two medians of a triangle are equal, then the triangle is ________

### Choices

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

a. | Equilateral triangle | |

b. | Right angle triangle | |

c. | Scalene triangle | |

d. | Isosceles triangle |

## Question 327

### Question

MCQ▾The base of a prism is a right angle triangle and the two sides containing the right angle are 8 cm and 15 cm. if its height is 20 cm, then the volume of the prism is ________

### Choices

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

a. | 160 c. cm. | |

b. | 600 c. cm. | |

c. | 300 c. cm. | |

d. | 1200 c. cm. |