Home
Class 14
MATHS
In a combined family the average age of ...

In a combined family the average age of 4 males and 7females is 42 and 20 years respectively. If two persons whose average age is 13 years have left the family and other three people joined the family whose respective ages are 11, 15 and 28 years, then the average age of the new family is increased by :

A

4 years

B

1 year

C

3 years

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • AVERAGES

    ARIHANT SSC|Exercise Final Round|27 Videos

  • AVERAGES

    ARIHANT SSC|Exercise Exercise (Level 1)|60 Videos

  • AVERAGE

    ARIHANT SSC|Exercise EXERCISE HIGHER SKILL LEVEL QUESTION|30 Videos

  • BAR CHART

    ARIHANT SSC|Exercise Higher Skill Level Questions|20 Videos

Similar Questions

Explore conceptually related problems

In a joint family , the average age of grandparents is 67 years , the average age of parents is 35 years and that of three grand children is 6 years .What is the average age of the family ?

The average age of 18 people is 25 years. After including 3 more persons, the average age is increased by 3 years. Find the average age of 3 new persons?

ARIHANT SSC-AVERAGES-Exercise (Level 2)
  1. The average expenditure of Sarvesh for the January to June is Rs. 4200...

    Text Solution

    |

  2. The average marks of sammer decreased by 1, When he repalced the subje...

    Text Solution

    |

  3. In a combined family the average age of 4 males and 7females is 42 and...

    Text Solution

    |

  4. A teacher gave sum to his class to find the average of n numbers viz. ...

    Text Solution

    |

  5. The average earning of a group of persons is ₹ 50 per day. The differe...

    Text Solution

    |

  6. There are three categories of jobs A,B and c . The average salary of t...

    Text Solution

    |

  7. Out of the five intergral number C is the average of A and D. B is gr...

    Text Solution

    |

  8. The average age of Donald his wife and their two children is 23 years....

    Text Solution

    |

  9. There are only five people in the Aman verma's family aman his wife a ...

    Text Solution

    |

  10. The average weight of political party is decreased by 1 when some new ...

    Text Solution

    |

  11. Ravi went to Kanpur from Lucknow by his four wheeler. During the journ...

    Text Solution

    |

  12. There are 6 consecutive odd numbers in increasing order. The differenc...

    Text Solution

    |

  13. The average age of board of directors of a company having 10 directors...

    Text Solution

    |

  14. In an office the average weight of 24 employees is 60 kg. If n employ...

    Text Solution

    |

  15. The average age of 100 nurses in a nursing home in 1982 was 50 years i...

    Text Solution

    |

  16. Bhartiya Idol is a talent search programme launched and run by TV Tara...

    Text Solution

    |

  17. A student has to secure 36% marks to pass. He gets 150 marks and fails...

    Text Solution

    |

  18. Bhartiya Idol is a talent search programme launched and run by TV Tara...

    Text Solution

    |

  19. If 75% of students in a school are boys and the number of girls is 310...

    Text Solution

    |

  20. It is known that 6% of the mangoes are rotten. If the number of rotten...

    Text Solution

    |