Home
Class 14
MATHS
In a village the average age of n people...

In a village the average age of n people is 42 years. But after the verification it was found that the age of a person had been considered 20 years less than the actual age, so the new average, after the correction, increased by 1. The value of n is :

A

21

B

20

C

22

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • AVERAGES

    ARIHANT SSC|Exercise Exercise (Level 2)|50 Videos
  • AVERAGES

    ARIHANT SSC|Exercise Final Round|27 Videos
  • AVERAGES

    ARIHANT SSC|Exercise Final Round|27 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 village the average age of people is 42 years but after the verification it was found that the age of a person had been considered 20 years less than the actual age so the new average after the correction increased by 1.The value of n is:

The average age of 12 players is 25 years. If the age of thecaptain be included, then the average age increases by 1years. Find the age of Captain

The average age of 10 students in a class is 20 years if a new student is also included then the new average age of all the students increases by 1 year.The age of the new student is:

The average age of a class is 21 years. If a student with age 42 years joins the class, then new average age becomes 24 years. How many total students are there in the class?

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?

The average age of 6 members of a family is 20 years. If the age of the servant is included, the average age increases by 25% . What is the age (in years) of the servant ?

Five years ago, the average of the ages of 4 persons was 40 years. If a new person joins the group now, then the average of the ages all five persons is 46 years. The age of the fifth person (in years) is:

ARIHANT SSC-AVERAGES-Exercise (Level 1)
  1. The average age of Sachin and Ganguli is 35 years, If Kaif replaces Sa...

    Text Solution

    |

  2. Out of these five people whose age is the greatest ?

    Text Solution

    |

  3. In a village the average age of n people is 42 years. But after the ve...

    Text Solution

    |

  4. The average rainfalls in the month of january and february is 6 cm and...

    Text Solution

    |

  5. On an average 300 people watch the movie in Sahu Cinema hall on Monday...

    Text Solution

    |

  6. The average weight of 11 players of Indian cricket team is increased b...

    Text Solution

    |

  7. The average age of a family of 6 members 4 year ago was 25 years. Mean...

    Text Solution

    |

  8. The average expenditure of Sarvesh for the January to June is Rs. 4200...

    Text Solution

    |

  9. The average of a, 11, 23, 17 is 15 and the average of a,b,12, 25 is 16...

    Text Solution

    |

  10. The average salary is being paid to all its employees by the Biotech c...

    Text Solution

    |

  11. The average of any 5 cosecutive odd numbers a,b,c,d and e is:

    Text Solution

    |

  12. The average age of 30 students of a class is 30 years.When the average...

    Text Solution

    |

  13. There were five sections in MAT paper. The average score of Pooja in f...

    Text Solution

    |

  14. The average age of 18 pupils of Dronacharya was 25 years.if the age of...

    Text Solution

    |

  15. The average of 7 consecutive odd numbers if the smallest of those numb...

    Text Solution

    |

  16. If the average marks of (1)/(4)th class is 85% and that of (1)/(3) rd ...

    Text Solution

    |

  17. The avearge length of any four fingers of my left hand is 600 mm.Then ...

    Text Solution

    |

  18. The average of 4(3/5),2(2/3),6(8/9),7(7/15),3(5/9) is:

    Text Solution

    |

  19. The average of 1000.0001,100.001,10.01,1.1 is:

    Text Solution

    |

  20. The average of 7 consecutive numbers which are positive integers is 10...

    Text Solution

    |