# IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 261 - 265 of 1040

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## Question number: 261

### Question

In what time will Rs. 100 amount to Rs. 121 at 10 % p. a. , if the interest is compounded annually?

### Choices

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

a. | 2 | |

b. | 3 | |

c. | 5 | |

d. | 4 |

## Question number: 262

### Question

There is 50 % increase in an amount in 5 years at simple interest. What will be the compound interest of Rs. 10,000 after 2 years at the same rate?

### Choices

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

a. | 3100 Rs. | |

b. | 3200 Rs. | |

c. | 2100 Rs. | |

d. | 20000 Rs. |

## Question number: 263

### Question

If a number x is 20 % less than another number y and y is 20 % more than 125, then x is equal to________.

### Choices

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

a. | 150 | |

b. | 120 | |

c. | 140 | |

d. | 125 |

## Question number: 264

» Quadrilaterals and Practical Geometry

### Question

Choose the correct statement.

### Choices

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

a. | The diagonals of a rectangle are perpendicular to each other | |

b. | If the diagonals of a quadrilateral intersect at right angles, it is not necessarily a rhombus | |

c. | The diagonals of a parallelogram are equal | |

d. | Every quadrilateral is either a trapezium or a parallelogram or a kite. |

## Question number: 265

### Question

The cost of a vehicle is Rs. 1,50,000. If its value depreciates at the rate of 20 % per annum then total depreciation after 3 years was________.

### Choices

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

a. | 72000 | |

b. | 70100 | |

c. | 73200 | |

d. | 71500 |