# NSTSE (National Science Talent Search Exam- Unified Council) Class 7: Questions 263 - 269 of 1732

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## Question number: 263

» Mathematics » Exponents and Powers

### Question

Simplify:

### Choices

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

a. |
| |

b. |
| |

c. |
| |

d. | None of the above |

## Question number: 264

» Mathematics » Perimeter and Area

### Question

If the ratio of circumference of two circles is 16: 81, the ratio of their area is

### Choices

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

a. | 256: 6561 | |

b. | 4: 9 | |

c. | 16: 81 | |

d. | 81: 16 |

## Question number: 265

» Mathematics » Exponents and Powers

### Question

Which of the following statement is false?

### Choices

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

a. | , if n is an odd integer | |

b. | For any number a, | |

c. | If then n = 2 | |

d. | All of the above |

## Question number: 266

### Question

The average height of 8 people is 158 cm. Later it was found that the height measuring tap had shown the height of each person 6 cm more. The correct average height of a person is

### Choices

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

a. | 152 cm | |

b. | 158 cm | |

c. | 172 cm | |

d. | 164 cm |

## Question number: 267

» Mathematics » Congruence of Triangles

### Question

If two triangles have their corresponding angles equal, then they are always congruent.

### Choices

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

a. | Cannot be determined | |

b. | True | |

c. | False | |

d. | All of the above |

## Question number: 268

» Biology » Nutrition in Plants

### Question

Which of the following product does not get released in the process of photosynthesis?

### Choices

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

a. |
| |

b. |
| |

c. |
| |

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

## Question number: 269

» Mathematics » Comparing Quantities

### Question

A sum was put at SI at a certain rate for 6 years. Had it been put at 3 % higher rate, it would have fetched Rs. 54 more. Find the sum.

### Choices

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

a. | 350 Rs. | |

b. | 550 Rs. | |

c. | 450 Rs. | |

d. | 500 Rs. |