# IMO Level 1- Mathematics Olympiad (SOF) Class 7: Questions 175 - 180 of 1022

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## Question number: 175

### Question

An employer pays Rs. 10 for each day a worker work, and deducts Rs. 4 for each day he is idle. At the end of 60 days, a worker gets Rs. 530. For how many days did the worker remain idle?

### Choices

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

a. | 4 | |

b. | 6 | |

c. | 5 | |

d. | 3 |

## Question number: 176

### Question

Purvi had 65 currency notes in all, some of which were of Rs. 50 denomination and the remaining of Rs. 100 denomination. The total amount of these currency notes was Rs. 6000. how much amount did he have in the denomination of Rs. 100?

### Choices

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

a. | Rs. 7725 | |

b. | Rs. 5500 | |

c. | Rs. 7800 | |

d. | Rs. 7500 |

## Question number: 177

### Question

If two supplementary angles differ by , then one of the angle is ________.

### Choices

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

a. |
| |

b. | 62° | |

c. |
| |

d. | Both a. and b. are correct |

## Question number: 178

### Question

If two supplementary angles differ by , then one of the angle is ________.

### Choices

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

a. |
| |

b. |
| |

c. |
| |

d. | 128° |

## Question number: 179

### Question

If two supplementary angles differ by , then one of the angle is ________.

### Choices

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

a. |
| |

b. |
| |

c. | 115° | |

d. | 105° |

## Question number: 180

### Question

In a group of animal and birds, in addition to 15 dogs there are 9 cows and 4 peacocks with some parrot. If the total number of feet be 86 more than the number of heads, Find the number of parrots.

### Choices

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

a. | 12 | |

b. | 20 | |

c. | 23 | |

d. | 10 |