Home
Class 14
MATHS
The average of 31 numbers is 59. The ave...

The average of 31 numbers is 59. The average of the first 11 numbers is 53.9 and that of the last 21 numbers is 62.1. lf the 11th number is excluded, then what is the average of the remaining numbers?

A

`57.4`

B

`58.4`

C

`59.2`

D

`57.9`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • SSC SELECTION POST (9 NOV 2020 SHIFT 1 HSC)

    SSC SELECTION POST|Exercise MULTIPLE CHOICE QUESTIONS|25 Videos

  • SSC SELECTION POST 10 NOV 2020 SHIFT 2 HSC LEVEL

    SSC SELECTION POST|Exercise QUANTITATIVE APTITUDE|25 Videos

Similar Questions

Explore conceptually related problems

The average of 21 number is 66. The average of the first 9 numbers is 63.7 and that of the last 13 number is 69.9 . If the 9^(th) number is excluded, then what is the average of the remaining numbers?

The average of 61 numbers is 54 .The average of first 31 numbers is 50.6 and that of last 31 numbers is 60.4 . If the 31^(st) number is excluded ,then what is the average of the remaining numbers ?

The average of 15 numbers is 56. The average of first 8 numbers is 54.4 and that of last 8 numbers is 56.6. If 8^(th) number is excluded then what is the average of the remaining numbers? (correct to one decimal place)

The average of 24 numbers is 26. The average of the first 15 numbers is 23 and that of the last 8 number is 33. Find the 16^(th) number.

The average of 21 numbers is 44. The average of first 11 numbers is 48 and that of last 11 numbers is 42. If 11th number is excluded, what is the average of the remaining numbers? 21 संख्याओं का औसत 44 है | पहली 11 संख्याओं का औसत 48 तथा अंतिम 11 संख्याओं का औसत 42 है| यदि 11वीं संख्या को हटा दिया जाए, तो शेष संख्याओं का औसत क्या होगा ?

The average of 17 numbersis 29. The averageoffirst 9 numbers is 31 and the averageof the last 9 numbers is 27. If 9th number is excluded, then what is the average of the remaining numbers?

The average of nine numbers is 50. The average of the first five numbers is 54 and that of the last three numbers is 52. Then, the sixth number is

The average of 20 numbers is 12 . The average of the first 12 numbers is 11 and that of the next 7 numbers is 10 . The last number is

SSC SELECTION POST-SSC SELECTION POST 10 NOV 2020 SHIFT 1 MATRICULATION LEVEL-Section : Quantitative Aptitude
  1. The compound interest on a sum of Rs. 15,000 at 15% p.a. for 2 (2)/(3)...

    Text Solution

    |

  2. Train X running at 50 km h leaves station A at 11 a.m and train Y runn...

    Text Solution

    |

  3. The average of 31 numbers is 59. The average of the first 11 numbers i...

    Text Solution

    |

  4. If ( a + b) : ( b + c ) : ( c + a) = 5 : 12 : 11 and a + b + c =28, th...

    Text Solution

    |

  5. Pipes X and Y can fill a tank in 30 minutes and 45 minutes, respective...

    Text Solution

    |

  6. A is 60% more than B and C is 45% less than twice the sum of B and A. ...

    Text Solution

    |

  7. A certain sum is divided between A. B, C and D such that the ratio of ...

    Text Solution

    |

  8. What is the area (in "cm"^2) of a circle circumscribing a triangle who...

    Text Solution

    |

  9. An article is sold for Rs. 799.50 after allowing two successive discou...

    Text Solution

    |

  10. The average score of 84 students (boys and girls) in a test is 57. The...

    Text Solution

    |

  11. Anu gains 18% on selling an article for Rs. 265.50. If she sells it fo...

    Text Solution

    |

  12. A car travels a distance of x km at a speed of 5(5)/(9)m/s and returns...

    Text Solution

    |

  13. A trader earns 20% profit by selling an article. If he increases the p...

    Text Solution

    |

  14. A person spends 60% of his monthly income. If his income increases by ...

    Text Solution

    |

  15. The value of (2)/(5) div (3)/(10) of (4)/(9) - (4)/(5) xx 1 (1)/(9) di...

    Text Solution

    |

  16. A shopkeeper marks his goods at 25% above the cost price. He sells thr...

    Text Solution

    |

  17. If the average of 3-digit numbers 235, 2x5, x35, 63x and 116 is 333...

    Text Solution

    |

  18. The value of a machine depreciates at the rate of 25% each year. If th...

    Text Solution

    |

  19. An article is sold at a profit of 15%. If both the cost price and the ...

    Text Solution

    |

  20. A person lent out a certain sum at 12% p.a. simple interest. In 10 yea...

    Text Solution

    |