# IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 817 - 821 of 1042

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## Question 817

### Question

MCQ▾Priya goes to a shop to buy a dress costing Rs. 2000 including sales tax of 10%. She asks the shopkeeper to reduce the price of the dress so that she can save an amount equal to the sales tax. The reduction in the price of the dress is________.

### Choices

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

a. | Rs 182 | |

b. | Rs 200 | |

c. | Rs 172 | |

d. | All of the above |

## Question 818

### Question

MCQ▾At what rate percent per annum will a sum of money double in 10 years?

### Choices

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

a. | 5% | |

b. | 20% | |

c. | 10% | |

d. | 15% |

## Question 819

### Question

MCQ▾The ratio of two numbers is 1: 2. Which of the following ratio is equivalent to 1: 2?

### Choices

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

a. | ||

b. | ||

c. | ||

d. |

## Question 820

### Question

MCQ▾A rectangular sheet of paper 30 cm X 18cm can be transformed into a right circular cylinder in two ways - by rolling the paper along its length or by rolling it along its breadth. Find the ratio of the volume of two cylinders formed.

### Choices

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

a. | 5: 3 | |

b. | 1: 5 | |

c. | 4: 3 | |

d. | 3: 2 |

## Question 821

### Question

MCQ▾A ladder is leaning against a house. The distance from the top of the ladder to the ground is 12 feet, and the distance from the foot of the ladder to the house is 4 feet. How tall is the ladder?

### Choices

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

a. | 13 feet | |

b. | 12.65 feet | |

c. | 12 feet | |

d. | None of the above |