# Mathematics-Playing with Numbers [NSTSE (National Science Talent Search Exam- Unified Council) Class 8]: Questions 1 - 8 of 44

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## Question number: 1

» Mathematics » Playing with Numbers

### Question

The number 1,53,690 is divisible by

### Choices

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

a. | 2 | |

b. | 5 | |

c. | 5 & 2 | |

d. | All of the above |

## Question number: 2

» Mathematics » Playing with Numbers

### Question

There is one number which is formed by writing one digit 6 times (e. g. 111111,666666 etc. ). Such a number is always divisible by:

### Choices

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

a. | 7 only | |

b. | 11 only | |

c. | 13 only | |

d. | All a. , b. and c. are correct |

## Question number: 3

» Mathematics » Playing with Numbers

### Question

What value should be given to * so that the number 63 * 474 is divisible by 11?

### Choices

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

a. | 9 | |

b. | 1 | |

c. | 7 | |

d. | 3 |

## Question number: 4

» Mathematics » Playing with Numbers

### Question

What value should be given to * so that the number 728 * 84 is divisible by 11?

### Choices

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

a. | 3 | |

b. | 6 | |

c. | 2 | |

d. | 0 |

## Question number: 5

» Mathematics » Playing with Numbers

### Question

In which of the following pairs of numbers it is true that their product is one fifth of their sum?

### Choices

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

a. | 1, | |

b. | 1, | |

c. | 1, | |

d. | 1,4 |

## Question number: 6

» Mathematics » Playing with Numbers

### Question

The number 8,775,540 is divisible by

### Choices

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

a. | 5 | |

b. | 5 & 9 | |

c. | 9 | |

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

## Question number: 7

» Mathematics » Playing with Numbers

### Question

The number 567 is divisible by each of the following numbers except ________.

### Choices

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

a. | 9 | |

b. | 6 | |

c. | 3 | |

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

## Question number: 8

» Mathematics » Playing with Numbers

### Question

Which of the following numbers is exactly divisible by 99?

### Choices

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

a. | 114345 | |

b. | 125792 | |

c. | 3572404 | |

d. | 913464 |