# NSTSE (National Science Talent Search Exam- Unified Council) Class 7: Questions 137 - 145 of 1732

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## Question 137

### Question

MCQ▾If x: y:: y: z then the correct statement is

### Choices

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

a. | xyz = x | |

b. | xy = yz | |

c. | ||

d. | zy = x |

## Question 138

## Question 139

### Question

MCQ▾If 15 % of 20 % of a number is 90, then the number is

### Choices

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

a. | 3000 | |

b. | 3800 | |

c. | 2500 | |

d. | 3200 |

## Question 140

## Question 141

### Question

MCQ▾In a football match the ratio of total number of players of both teams to the number of referees is

### Choices

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

a. | 22: 1 | |

b. | 11: 2 | |

c. | 22: 2 | |

d. | 10: 2 |

## Question 142

### Question

MCQ▾If one fourth, one half and one sixth of a number is added to itself, the result is 88. Find the number.

### Choices

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

a. | 87 | |

b. | ||

c. | ||

d. | All of the above |

## Question 143

### Question

MCQ▾The ratio of number of men to women in a company is 1: 45. If 75 more women join, the ratio becomes 1: 50. The number of men in the company is

### Choices

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

a. | 20 | |

b. | 25 | |

c. | 15 | |

d. | 35 |

## Question 144

### Question

MCQ▾Example for a proper fraction is

### Choices

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

a. | ||

b. | ||

c. | ||

d. |

## Question 145

### Question

MCQ▾A person travelled of the distance by train, by bus and the remaining 30 km by boat. The total distance travelled by him was

### Choices

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

a. | 155 km | |

b. | 225 km | |

c. | 105 km | |

d. | 285 km |