# IMO- Mathematics Olympiad Class 9: Questions 660 - 665 of 919

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## Question number: 660

» Linear Equations in Two Variables

### Question

The option which is not a solution of the equation , is________.

### Choices

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

a. | (0, 7) | |

b. | (4, -7) | |

c. | (5, 3) | |

d. | (2, 0) |

## Question number: 661

» Analytical Reasoning and Logical Reasoning

### Question

If in a certain language SURGEON is coded as HFITVLM, how is PHYSICIAN coded in that language?

### Choices

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

a. | KSBHRXRZM | |

b. | IETWSOSHK | |

c. | LTAKJYJUP | |

d. | GMDLFQFVX |

## Question number: 662

» Analytical Reasoning and Logical Reasoning

### Question

Choose the odd numeral pair/group

### Choices

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

a. | 14, 9 | |

b. | 21, 6 | |

c. | 42, 3 | |

d. | 17, 8 |

## Question number: 663

### Question

The highest score in an inning was of the total and the next highest was of the remainder. If the scores differed by 8, then the total score is ________.

### Choices

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

a. | 652 | |

b. | 654 | |

c. | 648 | |

d. | 650 |

## Question number: 664

### Question

In samayra’s opinion, her weight is greater than 40 kg but less than 47 kg. Her brother does not agree with Samayra and he thinks that Samayra’s weight is greater than 35 kg but less than 45 kg. Her mother’s view is that his weight cannot be greater than 43 kg. If all of them are correct in their estimations, what is the average of different probable weights of Samayra?

### Choices

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

a. | 32 kg | |

b. | 62 kg | |

c. | 52 kg | |

d. | 42 kg |

## Question number: 665

### Question

If 100 men can do a job in 80 days, in how many days will 120 men do it in ________.

### Choices

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

a. | 69 days | |

b. | 67 days | |

c. | 65 days | |

d. | 63 days |