# IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 538 - 546 of 1042

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## Question 538

### Question

MCQ▾The ratio of boys and girls in a school of 650 students is . How many boys should be admitted to make ratio ?

### Choices

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

a. | 130 | |

b. | 40 | |

c. | 50 | |

d. | 120 |

## Question 539

## Question 540

### Question

MCQ▾The value of is ________.

### Choices

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

a. | 4000 | |

b. | 8000 | |

c. | 2000 | |

d. | 1000 |

## Question 541

### Question

MCQ▾The ratio which bears to is________.

### Choices

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

a. | 1.65 | |

b. | 1.50 | |

c. | 1.78 | |

d. | 1.68 |

## Question 542

### Question

MCQ▾If and , then the value of is ________.

### Choices

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

a. | 8 | |

b. | 9 | |

c. | 10 | |

d. | 6 |

## Question 543

### Question

MCQ▾A sum of money is sufficient to pay wages for 25 days and wages for 25 days. The same money is sufficient to pay the wages of both for ________.

### Choices

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

a. | 12 days | |

b. | 11 days | |

c. | days | |

d. | 10 days |

## Question 544

### Question

MCQ▾A bag contains 25 paise, 10 paise and 5 paise coins in the ratio 1: 4: 5. If their total value is ₹ 90, the number of 10 paise coins is ________.

### Choices

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

a. | 600 | |

b. | 500 | |

c. | 800 | |

d. | 400 |

## Question 545

### Question

MCQ▾If A: B = 1: 4 and B: C = 3: 5, then C: A is equal to, ________.

### Choices

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

a. | 25: 14 | |

b. | 20: 3 | |

c. | 3: 20 | |

d. | 24: 15 |

## Question 546

### Question

MCQ▾The solution of , is________.

### Choices

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

a. | -2 | |

b. | -1 | |

c. | 3 | |

d. | 4 |