# IMO Level 1- Mathematics Olympiad (SOF) Class 7: Questions 501 - 506 of 1022

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## Question 501

### Question

MCQ▾The ratio of cows to dogs in a city is 8: 5. There are 33 fewer dogs than cows. What is the total number of cows and dogs in the city?

### Choices

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

a. | 98 | |

b. | 143 | |

c. | 214 | |

d. | 87 |

## Question 502

### Question

MCQ▾A drum of food oil is full. When 12 liters of oil is drawn from it, it is full. The capacity of the drum is ________.

### Choices

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

a. | 21 liters | |

b. | Can’t be determined | |

c. | 18 liters | |

d. | 35 liters |

## Question 503

### Question

MCQ▾There are 7 marbles in a box in which 5 are red and 2 are blue. What is the probability of getting a red marble?

### Choices

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

a. | ||

b. | ||

c. | ||

d. |

## Question 504

### Question

MCQ▾The cost price of ear-rings is Rs. 5200 and the loss percent is . Find the selling price of the ear-rings.

### Choices

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

a. | Rs. 5850 | |

b. | Rs. 4250 | |

c. | Rs. 3850 | |

d. | Rs. 5540 |

## Question 505

### Question

MCQ▾Each of two groups of tourists has 60 people. If of the first group and of the second group board buses to travel to a museum, how many more people of the first group board buses than of the second group?

### Choices

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

a. | 40 | |

b. | 2 | |

c. | 5 | |

d. | 4 |

## Question 506

### Question

MCQ▾Aman’s mother was 21 years old when his sister was born. His father is 8 years older than his mother. Now Aman is 17 years old and his sister is 3 years older than him. What is the present age of Aman’s father?

### Choices

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

a. | 50 years | |

b. | 46 years | |

c. | 49 years | |

d. | 47 years |