# NSTSE (National Science Talent Search Exam- Unified Council) Class 10: Questions 658 - 664 of 1484

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## Question 658

### Question

MCQ▾One of the properties of Mode is

### Choices

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

a. | Not easy to calculate | |

b. | Difference of greatest and least values | |

c. | It is not affected by greatest and least values | |

d. | Algebraic |

## Question 659

### Question

MCQ▾In the following figure . Then x = ________.

### Choices

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

a. | 4 cm | |

b. | 6 cm | |

c. | 8 cm | |

d. | None of the above |

## Question 660

### Question

MCQ▾Two numbers are chosen from 2 to 8. The probability for the two numbers to be consecutive is

### Choices

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

a. | ||

b. | ||

c. | ||

d. | None of the above |

## Question 661

### Question

MCQ▾If and are the roots of the quadratic equation with the condition , then the value of ‘m’ is

### Choices

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

a. | - 9 | |

b. | 2 | |

c. | 9 | |

d. | 9 or -9 |

## Question 662

### Question

MCQ▾A card is drawn from a packet of 150 cards numbered 1 to 150. The probability of drawing a number which is a square is

### Choices

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

a. | ||

b. | ||

c. | ||

d. |

## Question 663

## Question 664

### Question

MCQ▾A person walking 30 m towards a chimney in a horizontal line through its base observes that its angle of elevation changes from to . The height of chimney is ________.

### Choices

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

a. | ||

b. | ||

c. | ||

d. | None of the above |