# NCO- Cyber Olympiad (SOF) Class 6: Questions 36 - 41 of 722

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## Question number: 36

## Question number: 37

» Computers » Input & Output Devices

### Question

Which is NOT an input device?

### Choices

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

a. | OMR | |

b. | Speech synthesizer | |

c. | Optical scanners | |

d. | MICR |

## Question number: 38

» Mental Ability » Basic Arithmetic

### Question

HCF of two numbers is ________.

### Choices

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

a. | (The product of two numbers) their LCM | |

b. | The greatest number exactly divisible by each number | |

c. | The greatest number which divides each number exactly | |

d. | Both a. and c. are correct |

## Question number: 39

» Mental Ability » Ranking Test

### Question

Which pair of numbers represents the greatest and the least numbers in the following set?

{0,7, 2,0.08,1.69,1.8}

### Choices

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

a. | {1.69,0.08} | |

b. | {2,0.7} | |

c. | {2,0.08} | |

d. | {1,8, 2} |

## Question number: 40

» Mental Ability » Basic Arithmetic

### Question

Teachers were taking lectures. Each teacher’s lecture was 28 to 30 minutes long. Which of the following is the best estimate for the number of lectures that could be given in 3-hours?

### Choices

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

a. | 3 lectures | |

b. | 9 lectures | |

c. | 10 lectures | |

d. | 6 lectures |

## Question number: 41

» Mental Ability » Basic Geometry

### Question

In which of the following cases the construction of a triangle is possible, the lengths of its sides being given as### Choices

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

a. | 14 cm, 19 cm, 5 cm | |

b. | 18 cm, 12 cm, 5 cm | |

c. | 12 cm, 6 cm, 9 cm | |

d. | 8 cm, 4 cm, 12 cm |