# IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 163 - 172 of 1042

Access detailed explanations (illustrated with images and videos) to **1042** questions. Access all new questions- tracking exam pattern and syllabus. View the complete topic-wise distribution of questions. *Unlimited Access, Unlimited Time, on Unlimited Devices*!

View Sample Explanation or View Features.

Rs. 450.00 -OR-

How to register? Already Subscribed?

## Question 163

## Question 164

### Question

MCQ▾If then value of is________.

### Choices

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

a. | 1/10^{0.5} | |

b. | 2/10^{0.5} | |

c. | 4/10^{0.5} | |

d. | 3/10^{0.5} |

## Question 165

## Question 166

### Question

MCQ▾The number must be subtracted from 2329 to get a perfect square is________.

### Choices

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

a. | 15 | |

b. | 10 | |

c. | 25 | |

d. | 20 |

## Question 167

## Question 168

### Question

MCQ▾A number is multiplied by itself and then 6 is added to the product. If the final result is 175, then find the original number.

### Choices

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

a. | 13 | |

b. | 16 | |

c. | 12 | |

d. | 14 |

## Question 169

### Question

MCQ▾A number is multiplied by half to itself and then 5 is subtracted from the product. If the final result is 123, then find the original number.

### Choices

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

a. | 12 | |

b. | 11 | |

c. | 16 | |

d. | 14 |

## Question 170

### Question

MCQ▾The number must be subtracted from 6089 to get a perfect square is________.

### Choices

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

a. | 7 | |

b. | 8 | |

c. | 5 | |

d. | 18 |