# IMO Level 1- Mathematics Olympiad (SOF) Class 6: Questions 125 - 132 of 1059

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## Question 125

### Question

MCQ▾The number with which 96 is multiplied so that product remains the same is ________

### Choices

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

a. | 1 | |

b. | 0 | |

c. | 96 | |

d. |

## Question 126

### Question

MCQ▾Multiplicative identity for a rational number is________

### Choices

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

a. | 1 | |

b. | 0 | |

c. | 2 | |

d. | All of the above |

## Question 127

### Question

MCQ▾If are two whole numbers, then commutative law is applicable to subtraction if and only if

### Choices

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

a. | ||

b. | ||

c. | ||

d. |

## Question 128

### Question

MCQ▾A number is always divisible by 90 if

### Choices

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

a. | It is divisible by both 2 and 45 | |

b. | It is divisible by both 5 and 18 | |

c. | It is divisible by both 9 and 10 | |

d. | All a., b. and c. are correct |

## Question 129

### Question

MCQ▾Which of the following statement is true if N, W and I are sets of Natural, Whole and Integer numbers respectively?

### Choices

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

a. | I ⊂ W ⊂ N | |

b. | N ⊂ W ⊂ I | |

c. | W ⊂ N ⊂ I | |

d. | I ⊂ N ⊂ W |

## Question 130

### Question

MCQ▾The prime number that is placed at fifth after prime number 7 is

### Choices

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

a. | 27 | |

b. | 19 | |

c. | 23 | |

d. | 29 |

## Question 131

### Question

MCQ▾Observe the following patterns. Then find the sum of .

… …

### Choices

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

a. | 81 | |

b. | 121 | |

c. | 64 | |

d. | 100 |

## Question 132

### Question

MCQ▾Which sign will come in the blank space to make the expression true?

### Choices

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

a. | ⩽ | |

b. | > | |

c. | = | |

d. | < |