# IMO Level 1- Mathematics Olympiad (SOF) Class 7: Questions 381 - 388 of 1022

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## Question 381

## Question 382

### Question

MCQ▾When a number is reduced by 4, it becomes 80 % of itself. Find the number.

### Choices

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

a. | 20 | |

b. | 50 | |

c. | 40 | |

d. | 30 |

## Question 383

### Question

MCQ▾A man purchased a bag of tea containing 30 kg for Rs. 345. He sold it at the rate of Rs. 13.75 per kg. Then the profit or loss in % is ________.

### Choices

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

a. | 19.57 % loss | |

b. | 21.13 % gain | |

c. | 19.57 % gain | |

d. | 21.13 % loss |

## Question 384

## Question 385

### Question

MCQ▾By what number should be divided so that the quotient is ?

### Choices

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

a. | 3 | |

b. | ||

c. | ||

d. | 2 |

## Question 386

## Question 387

### Question

MCQ▾An object is dropped from a small plane flying at a height of 800 cm above the ground. As the object falls, d, its distance above the ground after t seconds is given by the formula below

How far above the ground is the object, when it has fallen for 3 seconds?

### Choices

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

a. | 345 cm | |

b. | 656 cm | |

c. | 575 cm | |

d. | 455 cm |

## Question 388

### Question

MCQ▾By what number should be divided so that the quotient is ?

### Choices

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

a. | ||

b. | 10 | |

c. | ||

d. | 6 |