Home
Class 14
MATHS
Three numbers A, B and C are in the r...

Three numbers A, B and C are in the ratio 1 : 2 : 3. Their average is 600. If A is increased by 10%. and B is decreased by 20%, then to get the average increased by 5%, C will he increased by `90` b. `100` c. `150` d. `180`

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

A number is increased by 10% and then decreased by 10%. Finally the number net decrease or increased by

Three numbers A,B and C are in the ratio 2 : 3 : 5. If each number is increased is increased by 20 % , 40 % and 60%, respectively then what will be the new ratio ?

A number is increased by 20% and then it is decreased by 20%. Find the net increase or decrease per cent.

Side of a square is first increased by 10% and then decreased by 20%. What is the overall percentage change in area ?

A number is increased by 20% and then it is decreased by 10%. Find the net increase or decrease per cent.

A number is increased by 10% and the increased number is decreased by 10%. Show that the net decrease is 1%

RS AGGARWAL-RATIO AND PROPORTION-All Questions
  1. In a school the ratio of boys and girls is 4 : 5 respectively. When...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  19. y\ varies directly as (x+3)a n d\ y=8\ w h e n\ x=1. What is th...

    Text Solution

    |

  20. The ratio of the rate of flow, of water in pipes varies inversely a...

    Text Solution

    |