# IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 687 - 695 of 931

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## Question 687

### Question

MCQ▾Given that is a solution of . The other solutions are ________.

### Choices

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

a. | ||

b. | ||

c. | ||

d. |

## Question 688

### Question

MCQ▾A card is drawn at random from a well shuffled pack of 52 cards. The probability that the ‘9’ of red color card is ________

### Choices

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

a. | ||

b. | ||

c. | ||

d. |

## Question 689

## Question 690

### Passage

A Train is going on a long journey for 20 hours, starting at 3.00 hrs. The speed of the car at different hours is given below:

Time (in hrs): | 3 | 5 | 8 | 10 | 12 | 15 | 18 | 20 | 23 |

Speed (in km/hour): | 60 | 70 | 90 | 50 | 60 | 75 | 60 | 30 | 60 |

From the above table answer the following questions.

## Question 691 (1 of 3 Based on Passage)

### Question

MCQ▾The percentage of increase in speed during 10.00 hrs and 12.00 hrs is ________

### Choices

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

a. | ||

b. | ||

c. | ||

d. |

## Question 692 (2 of 3 Based on Passage)

### Question

MCQ▾The percentage of decrease in speed during 18.00 hrs and 20.00 hrs is ________

### Choices

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

a. | ||

b. | ||

c. | ||

d. |

## Question 693 (3 of 3 Based on Passage)

### Question

MCQ▾The average speed (in km/hour) between 10.00 hrs, 12.00 hrs and 15.00 hrs is ________

### Choices

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

a. | 68 | |

b. | 62 | |

c. | 63 | |

d. | 57 |

## Question 694

### Question

MCQ▾If means X is the wife of Y, means X is the son of Y and means X is the sister of Y, which of the following would mean that A is the daughter of B?

### Choices

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

a. | ||

b. | ||

c. | ||

d. |

## Question 695

### Question

MCQ▾Mean marks scored by 40 students were found to be 60. Later it was observed that a score of 48 was misread as 84. Then the correct mean is ________

### Choices

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

a. | 59 | |

b. | 58 | |

c. | 59.1 | |

d. | 58.2 |