# Mental Ability-Basic Arithmetic (NCO- Cyber Olympiad Class 7): Questions 84 - 90 of 122

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## Question number: 84

» Mental Ability » Basic Arithmetic

### Question

### Choices

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

a. | 2190 | |

b. | 19418 | |

c. | 5012.5 | |

d. | 19578 |

## Question number: 85

» Mental Ability » Basic Arithmetic

### Question

A, B, C subscribe Rs. 60, 000 for a business. A subscribes Rs. 4000 more than B and B Rs. 3000 more than C. Then C’s share is________.

### Choices

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

a. | Rs. 8400 | |

b. | Rs. 11, 900 | |

c. | Rs. 13, 600.50 | |

d. | Rs. 16, 666.66 |

## Question number: 86

» Mental Ability » Basic Arithmetic

### Question

A train 200 m long is running at a speed of In what time will it pass a bridge 100 m long?

### Choices

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

a. | 45.55 sec | |

b. | 43.5 sec | |

c. | 42.30 sec | |

d. | 40.13 sec |

## Question number: 87

» Mental Ability » Basic Arithmetic

### Question

If each side of a cube is tripled, its volume

### Choices

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

a. | Becomes 27 times | |

b. | Becomes 6 times | |

c. | Is doubled | |

d. | Becomes 4 times |

## Question number: 88

» Mental Ability » Basic Arithmetic

### Question

The value of is

### Choices

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

a. | 4.55 | |

b. | 1.00 | |

c. | 2.30 | |

d. | 1.20 |

## Question number: 89

» Mental Ability » Basic Arithmetic

### Question

The cost of cultivating a square field at the rate of rupees 240 per hectare is rupees 1200. What is the cost of putting a fence around it at 50 paise per meter?

### Choices

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

a. | 900 rupees | |

b. | 447.21 rupees | |

c. | 600 rupees | |

d. | 400 rupees |

## Question number: 90

» Mental Ability » Basic Arithmetic

### Question

Express 0.5 % as a decimal

### Choices

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

a. | 0.12 | |

b. | 0.012 | |

c. | 0.005 | |

d. | 12 |