### Mathmetics

ISBT Mathmetics for all banking PO,Clerk,IBPS PO,Railway,SSC,IAS,OAS Exams

## Q581. | ## The H.C.F. of two numbers is 11 and their L.C.M. is 693. If one of the numbers is 77, find the other. |

1) | 1) 909 | 2) | 2) 119 |

3) | 3) 66 | 4) | 4) 99 |

5) | 5) None of these |

**Answer : 4) 99**

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## Q582. | ## A boat running downstream covers a distance of 24 kms in 4hrs while for covering the distance upstream it takes 6 hrs. What is the speed of the boat in still water ? |

1) | 5.5 km/hr | 2) | 6 km/hr |

3) | 3.5 km/hr | 4) | 4.5 km/hr |

5) | None of these |

**Answer : None of these**

**Explanation :**Ans. 5 km/hr

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## Q583. | ## 23 x 15 / 25 + 48.2 = -35 + ? |

1) | 97 | 2) | 98 |

3) | 95 | 4) | 96 |

5) | None of these |

**Answer : 97**

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## Q584. | ## (562 - 754) /6 = ? / (-5) |

1) | -120 | 2) | 120 |

3) | -160 | 4) | 160 |

5) | None of these |

**Answer : 160**

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## Q585. | ## 5/11 of 55% of 1500 ? |

1) | 395 | 2) | 392 |

3) | 375 | 4) | 372 |

5) | None of these |

**Answer : 375**

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## Q586. | ## (35.2 x 15 x 4) / 12 + 20 = (?) |

1) | (14)2 | 2) | 14 |

3) | 16 | 4) | (14)1/2 |

5) | None of these |

**Answer : 14**

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## Q587. | ## (3 x 4) |

1) | 57.6 | 2) | 59.6 |

3) | 53.2 | 4) | 51.2 |

5) | None of these |

**Answer : 57.6**

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