# IMO Level 1- Mathematics Olympiad (SOF) Class 10: Questions 668 - 673 of 968

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## Question 668

### Question

MCQ▾Using two, five and seventh digits of the number , one time each, which is the perfect square of a two-digit odd number, which of the following will be the second number of the odd number? .

### Choices

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

a. | 11 | |

b. | 7 | |

c. | 9 | |

d. | 3 |

## Question 669

### Question

MCQ▾Which of the following diagrams correctly represents Bitter Gourd, Pointer Guard, apricot, Vegetables?

### Choices

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

a. | ||

b. | ||

c. | ||

d. |

## Question 670

### Question

MCQ▾Which of the four is least like the other three?

### Choices

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

a. | Mountain | |

b. | Sea | |

c. | Tower | |

d. | River |

## Question 671

### Question

MCQ▾In the following number series how many 9՚s are followed by a square number but not preceded by an odd number?

### Choices

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

a. | 6 | |

b. | 7 | |

c. | 5 | |

d. | 4 |

## Question 672

### Question

MCQ▾If and then

### Choices

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

a. | 61551 | |

b. | 61155 | |

c. | 55116 | |

d. | 15516 |

## Question 673

### Question

MCQ▾In a certain code language, ‘123’ means ‘bright little girl’ , ‘145’ mean ‘tall big girl’ and ‘637’ means ‘beautiful little tree’ . Which digit in that language means ‘bright’ ?

### Choices

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

a. | 1 | |

b. | 2 | |

c. | 4 | |

d. | 3 |