# NCO- Cyber Olympiad (SOF) Class 6: Questions 1 - 8 of 722

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## Question number: 1

» Mental Ability » Basic Arithmetic

### Question

What is the least common factor (LCM) of 8 and 10?

### Choices

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

a. | 40 | |

b. | 80 | |

c. | 16 | |

d. | 24 |

## Question number: 2

» Mental Ability » Basic Arithmetic

### Question

What is the least common factor (LCM) of 14 and 21?

### Choices

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

a. | 42 | |

b. | 21 | |

c. | 70 | |

d. | 45 |

## Question number: 3

» Mental Ability » Basic Arithmetic

### Question

What is the least common factor (LCM) of 45 and 35?

### Choices

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

a. | 90 | |

b. | 45 | |

c. | 54 | |

d. | 30 |

## Question number: 4

» Computers » History and Generation of Computers

### Question

In the period 1956 - 1965, which generation of computer was developed?

### Choices

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

a. | Third generation | |

b. | First generation | |

c. | Fourth generation | |

d. | Second generation |

## Question number: 5

» Mental Ability » Number Games » Number Series

### Question

In the given series find the number in place of? .

23,19, ? , 12,9

### Choices

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

a. | 15 | |

b. | 16 | |

c. | 14 | |

d. | 17 |

## Question number: 6

» Mental Ability » Basic Arithmetic

### Question

John charged Rs. 15.75 for each birdhouse he built. If the material costs Rs. 10.25 Per house, how much profit could he earn after selling five houses?

### Choices

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

a. | Rs. 78.75 | |

b. | Rs. 27.50 | |

c. | Rs. 25.50 | |

d. | Rs. 51.25 |

## Question number: 7

» Mental Ability » Basic Arithmetic

### Question

The number that should replace the triangle so that the following forms a proportion is________.

12,21,8, ∆

### Choices

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

a. | 18 | |

b. | 16 | |

c. | 14 | |

d. | 20 |

## Question number: 8

» Mental Ability » Basic Arithmetic

### Question

A number is divisible by 5 if, ________.

### Choices

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

a. | The last digit is 5 or 0 | |

b. | The sum of the digits is divisible by 5 | |

c. | The sum of the digits is divisible by 10 | |

d. | Question does not provide sufficient data or is vague |