Home
Class 14
MATHS
The average of twelve numbers is 42. The...

The average of twelve numbers is 42. The average of the last five numbers is 40 and that of the first four numbers is 44. The 6th number is 6 less than the fifth and 5 less than the 7th number. The average of the 5th and the 7th numbers is:
बारह संख्याओं का औसत 42 है | अंतिम पांच संख्याओं का औसत 40 तथा पहली चार संख्याओं का औसत 44 है | छठी संख्या पाँचवीं से 6 कम है तथा 7वीं संख्या से 5 कम है | 5वीं और 7वीं संख्या का औसत है :

A

44

B

44.5

C

43

D

43.5

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • AVERAGE

    KIRAN PUBLICATION|Exercise TYPE-IV|10 Videos

  • AVERAGE

    KIRAN PUBLICATION|Exercise TYPE-V|24 Videos

  • AVERAGE

    KIRAN PUBLICATION|Exercise TYPE-II|51 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 twelve numbers is 39. The average of the last five number is 35, and that of the first four numbers is 40, The fifth number is 6 less than the sixth number and 5 more than the seventh number . The average of the fifth and sixth number is :

The average of twelve numbers is 46. The average of the first four numbers is 43 and that of the last five numbers is 49.4. The 5th and the 6th numbers are respectively 4 and 6 more than the 7th number. What is the average of the 5th and the 7th numbers? बारह संख्याओं का औसत 46 है | पहली चार संख्याओं का औसत 43 तथा अंतिम पांच संख्याओं का औसत 49.4 है | 5वीं और छठी संख्या सातवीं संख्या से क्रमशः 4 और 6 अधिक है | 5वीं और 7 वीं संख्या का औसत ज्ञात करें |

The average of twelve numbers is 45.5. The average of the first four numbers is 41.5 and that of the next five numbers is 48. The 10th number is 4 more than the 11th number and 9 more than the 12th number. What is the average of the 10th and 12th numbers? बारह संख्याओं का औसत 45.5 है | पहली चार संख्याओं का औसत 41.5 है तथा अगली पाँच संख्याओं का औसत 48 है | 10वीं संख्या, 11वीं संख्या से 4 अधिक तथा 12वीं संख्या से 9 अधिक है | 10वीं तथा 12वीं संख्याओं का औसत कितना है ?

The average of 13 numbers is 48.5. The average of the first five numbers is 56.4 and that of the last nine numbers is 45.6. What is the 5^(th) number?

The average of 13 numbers is 48.5. The average of the first five numbers is 56.4 and that of the last nine numbers is 45.6. what is the 5^(th) number ?

The average of 16 numbers is 48. The average of the first 7 numbers is 45 and the average of the next 6 numbers is 52. If the 14th number is 11 less than the 15th number and is 5 more than the 16th number, then the average of the 15th and 16th number is: 16 संख्याओं का औसत 48 है | पहली 7 संख्याओं का औसत 45 तथा अगली 6 संख्याओं का औसत 52 है | यदि 14वीं संख्या 15वीं संख्या से 11 कम तथा 16वीं संख्या से 5 अधिक है, तो 15वीं एवं 16वीं संख्या का औसत क्या होगा ?

The average of 20 numbers is 80. The average of first 10 numbers is 76.5 and that of next 7 numbers is 82. The 18th number is 3 more than the 19th number but 3 less than the 20th number. What is the average of 18th and 19th numbers? 20 संख्याओं का औसत 80 है | पहली 10 संख्याओं का औसत 76.5 है तथा अगली 7 संख्याओं का औसत 82 है | 18वीं संख्या 19वीं संख्या से 3 अधिक है लेकिन 20वीं संख्या से 3 कम है | 18वीं तथा 19वीं संख्या का औसत ज्ञात करें |

KIRAN PUBLICATION-AVERAGE-TYPE-III
  1. The average of 15 numbers Is 7. If the average of the first 8 numbers ...

    Text Solution

    |

  2. The average of 8 numbers is 20. The average of first tow numbers is 15...

    Text Solution

    |

  3. The average of 20 numbers is 12. The average of the first 12 numbers i...

    Text Solution

    |

  4. Average of n numbers is a. The first number is Increased by 2, second ...

    Text Solution

    |

  5. The average temperature of the first 4 days of a week was 37°C and tha...

    Text Solution

    |

  6. In a certain year, the average monthly income of a person was Rs 3,400...

    Text Solution

    |

  7. The average of 8 numbers is 21. If each of the numbers is mulitl-plied...

    Text Solution

    |

  8. The average of 11 results is 50. If the average of the first six resul...

    Text Solution

    |

  9. The average of eight successive numbers is 6.5. The average of the sma...

    Text Solution

    |

  10. The average of three numbers is 135. The largest number is 195 and the...

    Text Solution

    |

  11. The average of two numbers is 8 and the average of other three numbers...

    Text Solution

    |

  12. Out of four numbers, the average of the first three is 15 and that of ...

    Text Solution

    |

  13. Three numbers are such that the average of first two numbers is 2, the...

    Text Solution

    |

  14. The average of the largest and smallest 3 digit numbers formed by 0, 2...

    Text Solution

    |

  15. The average of six numbers is 3.95. The average of two of them is 3.4,...

    Text Solution

    |

  16. Out of four numbers the average of the first three is 16 and that of t...

    Text Solution

    |

  17. The average of 16 numbers is 48. The average of the first 7 numbers is...

    Text Solution

    |

  18. The average of 22 numbers is 52. The average of the first 8 numbers is...

    Text Solution

    |

  19. The average of twelve numbers is 42. The average of the last five numb...

    Text Solution

    |

  20. The average of thirteen numbers is 80. The average of the first five n...

    Text Solution

    |