Home
Class 14
MATHS
Average of 8 numbers is 40. The average ...

Average of 8 numbers is 40. The average of first three numbers is 46 and the average of next two numbers is 50. If the sixth number is 6 and 10 less than seventh and eighth number respectively, then what is the value of eighth number?

A

28

B

22

C

30

D

32

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • AVERAGE

    KIRAN PUBLICATION|Exercise TYPE-IX|15 Videos
  • ARITHMETICAL PROBLEMS

    KIRAN PUBLICATION|Exercise TYPE-X|32 Videos
  • BOAT AND STREAM

    KIRAN PUBLICATION|Exercise TEST YOURSELF |10 Videos

Similar Questions

Explore conceptually related problems

The average of 11 numbers is 28. If the average of first 5 numbers is 23 and the average of next 5 numbers is 25, then find the 11th number

The average of five numbers is 58. The average of first two numbers is 48.5 and the average of last two numbers is 53.5. Find the third number.

The average of 8 numbers is 20. The average of first tow numbers is 15 (1)/(2) and that of the next three is 21 (1)/(3) . If the sixth number be less that the seventh and eight numbers by 4 and 7 respectively, then the eighth number is :

The average of 8 numbers is 20. The average of first two numbers is 15(1)/(2) and that of the next three is 21(1)/(3). If the sixth number be less than the seventh and eighth numbers by 4 and 7 respectively,then the eighth numbers by 4 and 18 (b) 22 (c) 25 (d) 27

The average of 8 numbers is 20. the average o first two number is 15(1)/(2) and that of next three is 21(1)/(3) . If the sixth numbet be less than the seventh and eighth numbers by 4 and 7 respectively, then find the eighth number?

The average of 40 numbers is 36. The average of the first 25 numbers is 31 and the average of last 16 numbers is 43. Find the 25^(th) number

The average of five numbers is 58. The average of the first two numbers is 48.5 and the average of last two numbers is 53.5 .What is the third number?

The average of five numbers is 612. If the average of the first two numbers is 418 and the average of the last two numbers is 521. find the third number.

KIRAN PUBLICATION-AVERAGE-TYPE-X
  1. On mixing two classes A and B of students having average marks 25 and ...

    Text Solution

    |

  2. A man purchases milk for three consecutive years. In the first year, h...

    Text Solution

    |

  3. A fruit seller sold big, medium and small sized apples for Rs 15, Rs 1...

    Text Solution

    |

  4. A man purchased 7 bags of rice at the rate of Rs 800 each, 8 bags of r...

    Text Solution

    |

  5. The average (arithmetic mean) of 3^(30), 3^(60) and 3^(90) is

    Text Solution

    |

  6. In a team of 10 persons, nine persons spent Rs 40 each for their meal ...

    Text Solution

    |

  7. In an examination average marks obtained by the girls of a class is 85...

    Text Solution

    |

  8. A shop of electronic goods is closed on Monday. The average sales per ...

    Text Solution

    |

  9. Fifteen movie theatres average 600 customers per theatre per day. If s...

    Text Solution

    |

  10. Last year, 5 companies had an average of 16 non working days each. Thi...

    Text Solution

    |

  11. On 24th May, 2008 the maximum temperature of Delhi, Kolkata and Mumbai...

    Text Solution

    |

  12. Eight members of a club donate Rs. 100 each towards a Relief Fund and ...

    Text Solution

    |

  13. A team of 8 persons joins in a shooting competition. The best marksman...

    Text Solution

    |

  14. A librarian purchased 60 story books for his library. But he found tha...

    Text Solution

    |

  15. The average revenues of 7 consecutive years of a company is Rs. 79 lak...

    Text Solution

    |

  16. The average revenue of 13 consecutive years of a company is Rs. 70 lak...

    Text Solution

    |

  17. The average revenues of seven consecutive years of a company is Rs. 83...

    Text Solution

    |

  18. Out of the five subjects, the average marks of Suman in first 3 subjec...

    Text Solution

    |

  19. Average of 8 numbers is 40. The average of first three numbers is 46 a...

    Text Solution

    |

  20. In a class of 70 students, 40% are girls and remaining are boys. The a...

    Text Solution

    |