# IMO- Mathematics Olympiad Class 8: Questions 70 - 77 of 1029

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## Question number: 70

» Linear Equations in One Variable

### Question

Of a number multiplied by of the same number make 25. The number is_.

### Choices

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

a. | 1 | |

b. | 100 | |

c. | 1000 | |

d. | 10 |

## Question number: 71

» Linear Equations in One Variable

### Question

There were only two candidates in an election. One got 72 % votes and was elected by a margin of 880 votes. The total number of voters were_.

### Choices

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

a. | 1000 | |

b. | 2000 | |

c. | 500 | |

d. | 3000 |

## Question number: 72

» Linear Equations in One Variable

### Question

The sum of two numbers is 13 and difference of their squares is 13. The difference of the numbers is?

### Choices

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

a. | 1 | |

b. | 2 | |

c. | 0 | |

d. | 3 |

## Question number: 73

» Linear Equations in One Variable

### Question

The value of for which is_.

### Choices

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

a. |
| |

b. | 18 | |

c. |
| |

d. | 35 |

## Question number: 74

» Linear Equations in One Variable

### Question

A number 121 is divided into two parts in the ratio 6: 5. The product of the number is_.

### Choices

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

a. | 3211 | |

b. | 1550 | |

c. | 3750 | |

d. | 3630 |

## Question number: 75

» Linear Equations in One Variable

### Question

Solution of the equation is_.

### Choices

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

a. | 5 | |

b. | 0 | |

c. | -5 | |

d. | 1 |

## Question number: 76

» Linear Equations in One Variable

### Question

A number 100 is divided into two parts in the ratio 3: 2. The product of the number is_.

### Choices

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

a. | 2400 | |

b. | 2700 | |

c. | 1500 | |

d. | 2600 |

## Question number: 77

» Linear Equations in One Variable

### Question

A motor boat covers a certain distance downstream in a river in 1 hours. It covers the same distance upstream in 1 and half hours. The speed of the water is 2 km/hr. The speed of the boat in still water is_.

### Choices

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

a. | 10 km/hr | |

b. | 12 km/hr | |

c. | 11 km/hr | |

d. | 5 km/hr |