# NSTSE (National Science Talent Search Exam- Unified Council) Class 7: Questions 1168 - 1175 of 1732

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## Question 1168

### Question

MCQ▾In , the value of ‘a’ is

### Choices

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

a. | + 2 | |

b. | 0 | |

c. | - 2 | |

d. | + 1 |

## Question 1169

### Question

MCQ▾The mean of 6 observations is 28. If one observation, namely 8 is deleted, the new mean is

### Choices

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

a. | 52 | |

b. | 43 | |

c. | 25 | |

d. | 32 |

## Question 1170

### Question

MCQ▾The area of a triangular field is 0.5 hectares. If its altitude is 50 m, find the corresponding base.

### Choices

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

a. | 200 cm | |

b. | 25 m | |

c. | 200 m | |

d. | All of the above |

## Question 1171

### Question

MCQ▾A regular hexagon has ________

### Choices

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

a. | One line of symmetry | |

b. | No lines of symmetry | |

c. | Three lines of symmetry | |

d. | Six lines of symmetry |

## Question 1172

### Question

MCQ▾Which of the following is different from the other three?

### Choices

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

a. | ||

b. | ||

c. | ||

d. |

## Question 1173

## Question 1174

### Question

MCQ▾How many cubes are needed to make the solid below?

### Choices

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

a. | 24 | |

b. | 18 | |

c. | 12 | |

d. | 36 |

## Question 1175

### Question

MCQ▾The area of the largest triangle that can be inscribed in a semicircle whose radius is r cm is

### Choices

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

a. | ||

b. | ||

c. | ||

d. |