# Geometry [NRA CGL (National Recruitment Agency-Combined Graduate Level) Mathematics]: Questions 1 - 5 of 29

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## Question number: 1

» Geometry

### Question

Three spherical balls of radius 3 cm, 4 cm and 5 cm are melted to form a single spherical ball. In the process, the loss of material is 50%. The radius of the new ball is

### Choices

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

a. | 15 cm | |

b. | 10.4 cm | |

c. | 12.1 cm | |

d. | 7 cm |

## Question number: 2

» Geometry

### Question

Three spherical balls of radius 2 cm, 4 cm and 6 cm are melted to form a single spherical ball. In the process, the loss of material is 25%. The radius of the new ball is

### Choices

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

a. | 6 cm | |

b. | 5 cm | |

c. | 2 cm | |

d. | 3 cm |

## Question number: 3

» Geometry

### Question

Three spherical balls of radius 1 cm, 2 cm and 3 cm are melted to form a single spherical ball. In the process, the loss of material is 25%. The radius of the new ball is

### Choices

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

a. | 6 cm | |

b. | 2 cm | |

c. | 5 cm | |

d. | 3 cm |

## Question number: 4

» Geometry

### Question

If the length of rectangle is diminished in the ratio 8: 7 and its breadth is increased in the ratio 5: 6 then its area will be increased in the ratio

### Choices

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

a. | 7: 8 | |

b. | 20: 21 | |

c. | 14: 15 | |

d. | 6: 5 |

## Question number: 5

» Geometry

### Question

If the length of rectangle is increased in the ratio 2: 3 and its breadth is reduced in the ratio 7: 2 then its area will be reduced in the ratio

### Choices

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

a. | 10: 7 | |

b. | 21: 4 | |

c. | 7: 6 | |

d. | 7: 3 |