# Mathematics [NSTSE (National Science Talent Search Exam- Unified Council) Class 8]: Questions 835 - 842 of 1201

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## Question number: 835

### Question

MCQ▾What sum lent out at CI will amount to Rs. 1323 in 2 years at 5 % p. a. interest?

### Choices

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

a. | Rs. 800 | |

b. | Rs. 1200 | |

c. | Rs. 1600 | |

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

## Question number: 836

### Question

MCQ▾What change in percent is made in the area of a rectangle by decreasing its length and increasing its breadth by 10%?

### Choices

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

a. | 9 % increase | |

b. | 0.01 % increase | |

c. | 1 % decrease | |

d. | 0.99 % decrease |

## Question number: 837

### Question

MCQ▾The value of is:

### Choices

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

a. | 0.04 | |

b. | 0.2 | |

c. | 0.1 | |

d. | 1 |

## Question number: 838

### Question

MCQ▾Value of is:

### Choices

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

a. | 100 | |

b. | 280 | |

c. | 54 | |

d. | 28 |

## Question number: 839

### Question

MCQ▾18 men can complete a piece of work in 9 days. In how many days will 12 men complete the same work?

### Choices

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

a. | 13.5 | |

b. | 11 | |

c. | 17.5 | |

d. | 16 |

## Question number: 840

### Question

MCQ▾Simplified form of

### Choices

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

a. |
| |

b. |
| |

c. |
| |

d. | None of the above |

## Question number: 841

### Question

MCQ▾If and then is equal to:

### Choices

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

a. | 7 | |

b. | 3 | |

c. | -4 | |

d. | 5 |

## Question number: 842

### Question

MCQ▾A rope makes 55 rounds of the circumference of a cylinder whose radius of the base is 10 cm. How many times can it go round a cylinder with radius 5 cm?

### Choices

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

a. | 110 | |

b. | 55 | |

c. | 27.5 | |

d. | 80 |