Home
Class 14
MATHS
In a school the ratio of boys and gir...

In a school the ratio of boys and girls is 4 : 5 respectively. When 100 girls leave the school the, ratio becomes 6 : 7 respectively. How many boys are there in the school? `1300` b. `1500` c. `1600` d. Cannot be determined e. none of these

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • RACES AND GAMES OF SKILL

    RS AGGARWAL|Exercise All Questions|33 Videos

  • SIMPLE INTEREST

    RS AGGARWAL|Exercise All Questions|124 Videos

Similar Questions

Explore conceptually related problems

In a school , the ratio of boys and girls is 4:5. When 100 girls leave the school, the ratio becomes 6 :7 How many boy are there in the shool ?

In a school the ratio between boys and girls is 3:4. Find the percentage of boys in the school

In a certain school the ratio of boys to girls is 7 : 5. If there are 2400 students in the school, how many boys are there ?

In a certain school, the ratio of boys to girls is 7:5 . If there are 2400 students in the school, then how many girls are there ?

70% of students in a school are boys, if the number of girls is 240, how many boys are there in the school?

In a school having roll strength 286, the ratio of boys and girls is 8: 5. If 22 more girls get admitted into the school, the ratio of boys and girls becomes

In a class, the number of boys and girls is in the ratio of 4 : 5. If 10 more boys join the class, the ratio of numbers of boys and girls becomes 6 : 5. How many girls are there in the class?

In a certain school, the ratio of boys to girls is 7 : 5. If there are 2400 students in the school, then how many girls are there in the school?

There are 650 students in a school. If the number of girls is 106 more than the boys, how many boys are there in the school?

RS AGGARWAL-RATIO AND PROPORTION-All Questions
  1. What number has to be added to the terms of 3 : 5 to make the ratio...

    Text Solution

    |

  2. The ratio of the number of ladies to that of gents at a pin to was ...

    Text Solution

    |

  3. In a school the ratio of boys and girls is 4 : 5 respectively. When...

    Text Solution

    |

  4. Two numbers are in the ratio 1 1/2:2 2/3dot When each of these i...

    Text Solution

    |

  5. Three numbers A, B and C are in the ratio 1 : 2 : 3. Their average ...

    Text Solution

    |

  6. Two numbers are in the ratio 2 : 3. If 2 is subtracted from the fir...

    Text Solution

    |

  7. 20 litres of a mixture contains milk and water in the ratio of 5:3....

    Text Solution

    |

  8. When 1 is added to each of the two given numbers their ratio become...

    Text Solution

    |

  9. The ratio of number of boys to that of girls in a group becomes 2 :...

    Text Solution

    |

  10. Two vessels contain spirit of 0.5 and 0.75 concentrations. If 2 lit...

    Text Solution

    |

  11. The population of a city is 9000 in a particular year. If there is ...

    Text Solution

    |

  12. A barrel contains a mixture of seine and water in the ratio 3 : 1. ...

    Text Solution

    |

  13. One year ago the ratio of the ages of Sarika and Gouri as 3:4 respe...

    Text Solution

    |

  14. The average age of three boys is 25 years and their ages are in the...

    Text Solution

    |

  15. A box contains 1 rupee, 50-paise and 25-paise coins in the ratio 8:...

    Text Solution

    |

  16. There are 420 coins consisting of one rupee coins, 50-paise coins a...

    Text Solution

    |

  17. Monthly consumption of kerosene oil in certain household along with pr...

    Text Solution

    |

  18. If A varies directly proportional to C and B also varies directly p...

    Text Solution

    |

  19. If x is inversely proportioinal to y\ a n d\ y is proportiona...

    Text Solution

    |

  20. The falling height of an object is proportional to the square of th...

    Text Solution

    |