# IMO Level 1- Mathematics Olympiad (SOF) Class 7: Questions 539 - 544 of 1022

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## Question 539

### Question

MCQ▾Falak can solve 1 mathematical problem in 7 minutes. Then what time she will take to complete similar 12 problems?

### Choices

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

a. | 1 hrs 4 min | |

b. | 1 hr 24 min | |

c. | 1 hr 34 min | |

d. | 2 hrs 30 min |

## Question 540

### Question

MCQ▾By selling jeans for Rs. 630 a shopkeeper loses 10%. At what price should he sell the jeans so as to gain 10%?

### Choices

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

a. | Rs. 750 | |

b. | Rs. 275 | |

c. | Rs. 350 | |

d. | Rs. 770 |

## Question 541

### Question

MCQ▾A CD stand has 36 CDs of movies. On Sunday, 21 CDs were viewed by Rani. How many CDs remain unwatched?

### Choices

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

a. | 25 | |

b. | 12 | |

c. | 15 | |

d. | 11 |

## Question 542

### Question

MCQ▾The selling price of a necklace is Rs. 25800 and the loss percent is . Find the cost price of the necklace.

### Choices

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

a. | Rs. 30961 | |

b. | Rs. 30491 | |

c. | Rs. 39601 | |

d. | Rs. 32600 |

## Question 543

### Question

MCQ▾Meet’s father was 31 years old when his sister was born. His mother is 3 years younger than his father. Now Meet is 25 years old and his sister is 4 years older than him. What is the present age of Meet’s mother?

### Choices

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

a. | 56 years | |

b. | 59 years | |

c. | 57 years | |

d. | 60 years |

## Question 544

### Question

MCQ▾In a company, there are 45 % female employees. 40 % of all the male employees are developer. If there 58 % employees are developer out of the total 1800 employees, then the number of female employees who are developer are ________.

### Choices

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

a. | 652 | |

b. | 648 | |

c. | Can’t be determined | |

d. | 940 |