# IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 911 - 917 of 931

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## Question 911

## Question 912

### Question

MCQ▾If (2,0) is a solution of the linear equation then the value of k is ________

### Choices

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

a. | 2 | |

b. | 5 | |

c. | 6 | |

d. | 4 |

## Question 913

### Question

MCQ▾The mean of 18 observations is 30. If the mean of the first 8 observations is 25 and that of the last 10 observations is 34, then the 8^{th} observation is ________

### Choices

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

a. | 70 | |

b. | 58 | |

c. | 66 | |

d. | 68 |

## Question 914

### Question

MCQ▾If and then

### Choices

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

a. | ||

b. | ||

c. | ||

d. |

## Question 915

### Question

MCQ▾According to Euclid, a Line has________

### Choices

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

a. | No length, no breadth and no thickness | |

b. | Length but no breadth and thickness | |

c. | Thickness but no breadth and length | |

d. | Breadth but no length and thickness |

## Question 916

### Question

MCQ▾Mayur bought pencil at ₹ 3 each and y getting cards at 90 paise each. If the pencil cost ₹ 15 more than the cards, the equation involving x and y are ________

### Choices

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

a. | ||

b. | ||

c. | ||

d. |

## Question 917

### Question

MCQ▾Raj starts from his office facing west and walks 100 meters straight, then takes a right turn and walks 100 meters. Further, he takes a left turn and walks 50 meters. In which direction is Raj now from the starting point?

### Choices

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

a. | North | |

b. | South-West | |

c. | North-West | |

d. | North-East |