# IMO Level 1- Mathematics Olympiad (SOF) Class 10: Questions 683 - 690 of 968

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## Question 683

### Question

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

### Choices

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

a. | Sun | |

b. | Pluto | |

c. | Mercury | |

d. | Saturn |

## Question 684

### Question

MCQ▾If and then

### Choices

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

a. | 2550 | |

b. | 7534 | |

c. | 4357 | |

d. | 5743 |

## Question 685

### Question

MCQ▾stands for division, stands for multiplication, stands for subtraction and stands for addition. Which one of the following equations is correct?

### Choices

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

a. | ||

b. | ||

c. | ||

d. |

## Question 686

### Question

MCQ▾Find the missing number.

### Choices

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

a. | 20 | |

b. | 26 | |

c. | 52 | |

d. | 16 |

## Question 687

### Question

MCQ▾All the faces of a cube are painted with Orange colour. Then it is cut into 343 small equal cubes. How many small cubes will be formed having no face coloured?

### Choices

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

a. | 168 | |

b. | 165 | |

c. | 166 | |

d. | 167 |

## Question 688

### Question

MCQ▾How many 7՚s are there in the following series which are not immediately followed by 3 but immediately preceded by 8?

### Choices

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

a. | 2 | |

b. | 4 | |

c. | 1 | |

d. | 3 |

## Question 689

### Question

MCQ▾Samayra was both 13^{th} highest and 13^{th} lowest in a spelling contest. How many people were in the contest?

### Choices

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

a. | 13 | |

b. | 25 | |

c. | 27 | |

d. | 26 |

## Question 690

### Question

MCQ▾stands for division, stands for multiplication, stands for subtraction and stands for addition. Which one of the following equations is correct?

### Choices

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

a. | ||

b. | ||

c. | ||

d. |