# NRA CGL (National Recruitment Agency-Combined Graduate Level) Mathematics: Questions 310 - 314 of 425

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## Question number: 310

### Question

A loss of 18.25 % gets converted into a profit of 6.75 % when the selling price of an article is increased by Rs. 250. The cost price of the article is (Paper-1)

### Choices

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

a. | Rs. 4000 | |

b. | Rs. 2000 | |

c. | Rs. 3000 | |

d. | Rs. 1000 |

## Question number: 311

» Average

### Question

The average age of 80 students of a class is 20 years. When 20 new students are admitted, the average age is increased by 0.6 years. The average age of new students is (Paper- I)

### Choices

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

a. | 24 years | |

b. | 23 years | |

c. | 25 years | |

d. | 22 years |

## Question number: 312

### Question

A ladder 10 m long is placed in street so as to reach a window 8 m high. On turning the ladder on the other side of the street, it reaches a point 6 m high. The width of the street is (Paper - I)

### Choices

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

a. | 32 m | |

b. | 14 m | |

c. | 45 m | |

d. | 28 m |

## Question number: 313

» Geometry

### Question

The area of the biggest circle, which can be drawn inside a square of side 20 cm, is (Paper- I)

### Choices

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

a. | 445.34 sq. cm. | |

b. | 325.56 sq. cm. | |

c. | 645.64 sq. cm. | |

d. | 314.29 sq. cm. |

## Question number: 314

### Question

If the total cost of 66 articles having equal cost is Rs. 3300 and the total selling price of 75 such articles is Rs. 2250, then in the transaction, there will be (Paper - I)

### Choices

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

a. | A loss of 70% | |

b. | A loss of 40% | |

c. | A gain of 70% | |

d. | A gain of 40% |