# NSTSE (National Science Talent Search Exam- Unified Council) Class 4: Questions 347 - 353 of 1971

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## Question 347

### Question

MCQ▾The number 12 has six factors: . The table below lists the number of factors for some numbers.

Number | Number of factors |

41 | 2 |

43 | 2 |

45 | 6 |

47 | 2 |

49 | 3 |

From this we can say that the number of prime numbers between 40 and 50 is:

### Choices

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

a. | 1 | |

b. | 0 | |

c. | 3 | |

d. | 4 |

## Question 348

## Question 349

### Question

MCQ▾The decimal form of is:

### Choices

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

a. | 0.13 | |

b. | 130 | |

c. | 0.013 | |

d. | 0.103 |

## Question 350

### Question

MCQ▾Find the product of the numbers as shown on the spike abacus?

### Choices

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

a. | 30,148 | |

b. | 25,671 | |

c. | 29,154 | |

d. | 30,184 |

## Question 351

### Question

MCQ▾Father brings a big bag of apples to distribute to his family of 20 members. If he plans to give 1 box of 25 apples to each member and have no extra apples, how many apples should be there in the bag?

### Choices

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

a. | 400 | |

b. | 500 | |

c. | 45 | |

d. | 525 |

## Question 352

## Question 353

### Question

MCQ▾Above calculation, the answer is incorrect due to a mistake in one of the digits in the calculation step. The incorrect digit is:

### Choices

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

a. | 5 | |

b. | 8 | |

c. | 6 | |

d. | 0 |