# NSTSE (National Science Talent Search Exam- Unified Council) Class 8: Questions 1163 - 1169 of 2028

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## Question 1163

### Question

MCQ▾If the ratio of area of two circles is 16: 25 the ratio of their circumference is:

### Choices

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

a. | 4: 5 | |

b. | 5: 4 | |

c. | 3: 5 | |

d. | 25: 16 |

## Question 1164

### Question

MCQ▾A wheel that has 6 cogs is meshed with a larger wheel of 14 cogs. When the smaller wheel has made 21 revolutions, then the number of revolutions made by the larger wheel is:

### Choices

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

a. | 49 | |

b. | 9 | |

c. | 4 | |

d. | 12 |

## Question 1165

### Question

MCQ▾The value of is:

### Choices

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

a. | ||

b. | ||

c. | ||

d. | None of the above |

## Question 1166

### Question

MCQ▾The average of the middle two rational numbers if are arranged in ascending order is

### Choices

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

a. | ||

b. | ||

c. | ||

d. |

## Question 1167

### Question

MCQ▾A certain number of men can finish a piece of work in 100 days. If there were 10 men less, it would take 10 days more for the work to be finished. How many men were there originally?

### Choices

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

a. | 75 | |

b. | 82 | |

c. | 110 | |

d. | 100 |

## Question 1168

### Question

MCQ▾Which of the following fibre is made of coal, air and water?

### Choices

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

a. | Rayon | |

b. | Polyester | |

c. | Terrycot | |

d. | Nylon |

## Question 1169

### Question

MCQ▾The real factors of are:

### Choices

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

a. | Does not exist | |

b. | ||

c. | ||

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