# Mathematics-Rational Numbers [NSTSE (National Science Talent Search Exam- Unified Council) Class 7]: Questions 1 - 6 of 70

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## Question 1

### Question

MCQ▾Which of the following alternatives is wrong? Given that

(I) Difference of two rational numbers is a rational number

(II) Subtraction is commutative on rational numbers

(III) Addition is not commutative on rational numbers

### Choices

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

a. | (I) only | |

b. | (I) and (III) | |

c. | (II) and (III) | |

d. | None of the above |

## Question 2

### Question

MCQ▾is a

### Choices

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

a. | Either positive or negative rational number | |

b. | Negative rational number | |

c. | Neither positive nor negative rational number | |

d. | Positive rational number |

## Question 3

### Question

MCQ▾is a

### Choices

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

a. | Positive rational number | |

b. | Neither positive nor negative rational number | |

c. | Either positive or negative rational number | |

d. | Negative rational number |

## Question 4

### Question

MCQ▾What number should be added to so as to get ?

### Choices

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

a. | ||

b. | ||

c. | ||

d. |

## Question 5

### Question

MCQ▾Name the property of multiplication illustrated by

### Choices

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

a. | Distributive property | |

b. | Associative property | |

c. | Commutative property | |

d. | None of the above |

## Question 6

### Question

MCQ▾How many pieces of equal size can be cut from a rope of 50 meters long, each measuring meters?

### Choices

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

a. | 12 | |

b. | 15 | |

c. | 5 | |

d. | 10 |