# NCO- Cyber Olympiad (SOF) Class 8: Questions 244 - 248 of 510

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## Question number: 244

» Mental Ability » Basic Algebra

### Question

Which steps could be used to solve this equation?

### Choices

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

a. | Subtract 11 from both sides, then multiply both sides by 7 | |

b. | Divide both sides by 7, then add 11 to both sides | |

c. | Multiply both sides by 7, then subtract 11 from both sides | |

d. | Add 11 to both sides, then multiply both sides by 7 |

## Question number: 245

» Mental Ability » Basic Arithmetic

### Question

A can do a piece of work in 40 days. He works at it for 5 days and then B alone finishes the work in 21 days. The two together could have completed the work in

### Choices

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

a. | 25 days | |

b. | 35 days | |

c. | 12 days | |

d. | 15 days |

## Question number: 246

» Mental Ability » Number Games

### Question

Which series is arranged from greatest to least?

### Choices

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

a. | 0.5,5%, , | |

b. | , , , 5% | |

c. | , 5%, 0.05, | |

d. | , 0.5,5%, |

## Question number: 247

» Mental Ability » Basic Algebra

### Question

Which steps could be used to solve this equation?

### Choices

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

a. | Multiply both sides by the reciprocal of , then subtract 5 from both sides | |

b. | Divide both sides by the reciprocal of , then subtract 5 from both sides | |

c. | Subtract 5 from both sides, then multiply both sides by the reciprocal of | |

d. | Subtract 5 from both sides, then divide both sides by the reciprocal of |

## Question number: 248

» Mental Ability » Basic Arithmetic

### Question

A, B and C enter into partnership. A invests some money at the beginning; B invests thrice the amount after 8 months and C invests double the amount after 6 months. If the annual profit be Rs. 54000, A’s share is

### Choices

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

a. | 27000 Rs. | |

b. | 12000 Rs. | |

c. | 18000 Rs. | |

d. | 16000 Rs. |