Home
Class 14
MATHS
A family consists of grandparents, pa...

A family consists of grandparents, parents and three grandchildren. The average age of the grandparents is 67 years, that of the parents is 35 years and that of the grandchildren is 6 years. What is the average age of the family? `28 4/7` years (b) `31 5/7` years (c) `32 1/7` years (d) None of these

Promotional Banner

Topper's Solved these Questions

  • AREA

    RS AGGARWAL|Exercise All Questions|473 Videos

  • BANKERS DISCOUNT

    RS AGGARWAL|Exercise All Questions|20 Videos

Similar Questions

Explore conceptually related problems

A family consists of two grandparents, three parents and four grandchildren. The average age of the grand parents is 65 years, that of the parents is 32 years and that of the grand children is 8 years. What is the average age of the family?

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 ?

Average age of A and B is 30 years, that of B and C is 32 years and the average age of C and A is 34 years. The age of C is

The average age of a husband and his wife was 23 years at the time of their marriage.After five years they have a one-year old child.The average age of the family now is (a) 19 years (b) 23 years (c) 28.5 years (d) 29.3 years

The average age of A, B and C is 26 years. If the average age of A and C is 29 years, what is the age of B in years ?

The average age of A B, C, D and E is 40 years. A and B have an average age of 35 years and an average age of C and D Is 42 years. Find the age of E?

Average age of A and B is 20 years. B and C is 18 years. A and C is 21 years. What is the average age (in years) of A, B and C?

RS AGGARWAL-AVERAGE-All Questions
  1. The average age of the boys in a class is 16 years and that of the ...

    Text Solution

    |

  2. The average annual income (in Rs) of certain agricultural workers i...

    Text Solution

    |

  3. A family consists of grandparents, parents and three grandchildren....

    Text Solution

    |

  4. A library has an average of 510 visitors on Sundays and 240 on othe...

    Text Solution

    |

  5. In a class there are 32 boys and 28 girls. The average age of the b...

    Text Solution

    |

  6. The average weight of 16 boys in a class is 50.25 kgs and that of t...

    Text Solution

    |

  7. The mean of 5 observations is 60, the mean of 10 observations is 30...

    Text Solution

    |

  8. The average expenditure of a man for the first five months of a yea...

    Text Solution

    |

  9. A school has 4 sections of Chemistry in Class X having 40, 35, 45 a...

    Text Solution

    |

  10. If the average of m numbers is n^2 and that of n numbers is m^2 ...

    Text Solution

    |

  11. The average of five consecutive numbers is x . If the next two n...

    Text Solution

    |

  12. A person purchases 1 kg of tomatoes from each of the 4 places at th...

    Text Solution

    |

  13. In a certain factory there are five workers A ,\ B ,\ C ,\ D and E ...

    Text Solution

    |

  14. A car owner buys petrol at Rs 17, Rs 19 and Rs 20 per litre for thr...

    Text Solution

    |

  15. The average of six numbers is x and the average of three of thes...

    Text Solution

    |

  16. Out of 9 persons, 8 persons spent Rs 30 each for their meals. The n...

    Text Solution

    |

  17. There were 35 students in a hostel. If the number of the students i...

    Text Solution

    |

  18. The average price of three items of furniture is Rs 15000. If their...

    Text Solution

    |

  19. Of the four members, the first is twice the second, the second is o...

    Text Solution

    |

  20. Out of three numbers, the first is twice the second and is half of ...

    Text Solution

    |