# NCO- Cyber Olympiad (SOF) Class 10: Questions 85 - 88 of 461

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## Question number: 85

» Mental Ability » Basic Arithmetic

### Question

Coins are dropped into a donation box so that the box is being filled at the rate of approximately 3 cubic meters per hour. If the empty rectangular box is 6 meter long, 6 meter wide and 4 meter deep, approximately how many hours does it take to fill the box?

### Choices

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

a. | 6 | |

b. | 12 | |

c. | 24 | |

d. | 48 |

## Question number: 86

» Mental Ability » Basic Arithmetic

### Question

In a regiment the ratio of the number of officers to the number of soldiers was 3: 31 before battle. In the battle 6 officers and 22 soldiers were killed. The ratio between the number of officers and the number of soldiers now is 1: 13. Find the number of officers and soldiers in the regiment, before the battle.

### Choices

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

a. | 217 | |

b. | 216 | |

c. | 215 | |

d. | None of the above |

## Question number: 87

» Mental Ability » Basic Arithmetic

### Question

Find an even number with 3 digits such that all the digits are different and add up to 18. The difference between the first two digits equals the difference between the last two digits. The hundreds digit is less than the sum of the tens and ones digits.

### Choices

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

a. | 873 | |

b. | 954 | |

c. | 860 | |

d. | 864 |

## Question number: 88

» Non Verbal Reasoning » Cubes and Dices

### Question

Shown below are six dices. The upper part of each dice is erased. The sum of dots on the front-back and top-bottom faces is 7.

If the dice I, II and III have odd number of dots on their upper faces, then what would be the total number of dots?

### Choices

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

a. | 15 | |

b. | 11 | |

c. | 13 | |

d. | 9 |