# Mathematics [NSTSE (National Science Talent Search Exam- Unified Council) Class 8]: Questions 638 - 644 of 1201

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## Question 638

### Question

MCQ▾If a square number ends in 5, the preceding figure is:

### Choices

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

a. | 2 | |

b. | A composite number | |

c. | A prime number | |

d. | An odd number |

## Question 639

### Question

MCQ▾The difference between circumference and radius of a circle is 111 m. The circumference of that circle is:

### Choices

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

a. | 176 m | |

b. | 66 m | |

c. | 132 m | |

d. | 74 m |

## Question 640

### Question

MCQ▾The number of flat surface in a cone is:

### Choices

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

a. | 3 | |

b. | 1 | |

c. | 2 | |

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

## Question 641

### Question

MCQ▾A wire bent in the form of a circle of radius 56 cm is cut and again bent in the form of a square. The ratio of the regions enclosed by the circle and the square in the two cases is given by

### Choices

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

a. |
| |

b. |
| |

c. |
| |

d. | 11: 7 |

## Question 642

### Question

MCQ▾Which is greater in ?

### Choices

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

a. | Can’t say | |

b. |
| |

c. |
| |

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

## Question 643

### Question

MCQ▾The selling price when goods which cost Rs. 75 are sold at a loss of 10 % is:

### Choices

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

a. | 82.5 Rs. | |

b. | 65.5 Rs. | |

c. | 79 Rs. | |

d. | 67.5 Rs. |

## Question 644

### Question

MCQ▾If the price of 8 toys is Rs. 366.4, what will be the approximate price of 7 toys?

### Choices

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

a. | 298 | |

b. | 200 | |

c. | 325 | |

d. | 321 |