# NSTSE (National Science Talent Search Exam- Unified Council) Class 10: Questions 688 - 694 of 1484

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## Question 688

### Question

MCQ▾The points form the vertices of

### Choices

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

a. | Equilateral triangle | |

b. | Right angled triangle | |

c. | Isosceles right angled triangle | |

d. | Isosceles triangle |

## Question 689

### Question

MCQ▾If is a positive integer and the roots of the equation are rational numbers, then the smallest value of is:

### Choices

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

a. | 1 | |

b. | 5 | |

c. | 3 | |

d. | 4 |

## Question 690

### Question

MCQ▾The probability for a randomly selected number out of 11, 12,13, 14, … . , 50 to be a prime number is

### Choices

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

a. | ||

b. | ||

c. | ||

d. |

## Question 691

### Question

MCQ▾The value of = ________.

### Choices

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

a. | ||

b. | ||

c. | 1 | |

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

## Question 692

### Question

MCQ▾The probability for a leap year to have 53 Sundays is

### Choices

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

a. | ||

b. | ||

c. | ||

d. |

## Question 693

### Question

MCQ▾From the given figure the value of x is ________ if .

### Choices

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

a. | 1.6 | |

b. | 3 | |

c. | 3.6 | |

d. | 2 |

## Question 694

### Question

MCQ▾Which of the following statements is not true?

### Choices

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

a. | Any two right triangles are similar | |

b. | A square is similar to a rectangle | |

c. | Any two rectangles are similar | |

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