# IMO Level 1- Mathematics Olympiad (SOF) Class 7: Questions 472 - 476 of 1022

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## Question number: 472

### Question

Ruhi and her father both had birthdays next week. The sum of their ages will be 70 years. Her father’s age is 1.5 times Ruhi’s age. What is her father’s age?

### Choices

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

a. | 35 years | |

b. | 55 years | |

c. | 45 years | |

d. | 30 years |

## Question number: 473

### Question

Sharad has a total of Rs. 60,000. He spends 10 % of his money on clothes and from remaining he spends 15 % of money on tuition fees. How many total rupees does he spend?

### Choices

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

a. | Rs. 14000 | |

b. | Rs. 14100 | |

c. | Rs. 15100 | |

d. | Rs. 15200 |

## Question number: 474

### Question

Two equal containers are filled with a mixture of sunflower-oil and fortune-oil. The concentration of sunflower-oil in each of the containers is 10 % and 15 % respectively. What is ratio of fortune-oil in both the containers respectively?

### Choices

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

a. | 18: 17 | |

b. | 5: 6 | |

c. | 17: 18 | |

d. | 6: 5 |

## Question number: 475

### Question

By selling a shirt for Rs. 285 a shopkeeper loses 5%. At what price should he sell the shirt so as to gain 15%?

### Choices

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

a. | Rs. 345 | |

b. | Rs. 300 | |

c. | Rs. 325 | |

d. | Rs. 295 |

## Question number: 476

### Question

A diver was diving 80 meters below sea level. He went down 50 meters more and came up 40 meters. How far below sea level did he dives?

### Choices

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

a. | meters | |

b. | meters | |

c. | meters | |

d. | meters |