Home
Class 11
MATHS
The mean of five numbers is 30. If one n...

The mean of five numbers is 30. If one number is excluded, their mean becomes 28. The excluded number is
(i) 28
(ii) 30
(iii) 35
(iv) 38

A

28

B

30

C

35

D

38

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

The mean of five numbers is 27. If one number is excluded, their mean is 25.Find the excluded number.

The mean of five numbers is 27. If one number is excluded, their mean is 25.Find the excluded number.

The mean of five numbers is 27. If one number is excluded, their mean is 25. Find the excluded number.

The mean of 5 numbers is 18. If one number is excluded, their mean is 16. Find the excluded number.

The mean of 5 numbers is 18. If one number is excluded, their mean is 16. Find the excluded number.

The mean of 5 number is 18. If one numbers is excluded, their mean is 16. Find the excluded number.

The mean of 5 number is 18. If one numbers is excluded, their mean is 16. Find the excluded number.

The mean of 5 number is 18. If one numbers is excluded, their mean is 16. Find the excluded number.

The mean of 10 numbers is 24. If one more number is included, the new mean is 25. Find the included number.

The mean of 6 numbers is 42. If one number is excluded, the mean of remaining numbers is 45. Find the excluded number.

ICSE-STATISTICS-MULTIPLE CHOICE QUESTIONS
  1. The measure of central tendency of a statistical data which takes into...

    Text Solution

    |

  2. The mean of five numbers is 30. If one number is excluded, their mean ...

    Text Solution

    |

  3. The mean of 100 observations is 50. If one of the observation which wa...

    Text Solution

    |

  4. If barx is the mean of n observations x(1),x(2),x(3)……x(n), then the v...

    Text Solution

    |

  5. Median of the numbers 4,4,5,7,6,7,7,3,12 is (i) 4 (ii) 5 (iii) 6 (iv)...

    Text Solution

    |

  6. The median of the data 78,56,22,34,45,54,39,68,54,84 is (i) 45 (ii...

    Text Solution

    |

  7. The most frequently occurring number in a set of value is called (i)...

    Text Solution

    |

  8. Mode of the data :15,14,19,20,14,15,16,14,15,18,19,15,17,15 is (i) 14...

    Text Solution

    |

  9. If the mean of the following distribution is 2.6 Then the value of p ...

    Text Solution

    |

  10. The time in seconds, taken by 150 athletes to run a 110 m hurdle race ...

    Text Solution

    |

  11. Consider the following frequency distribution The upper limit of ...

    Text Solution

    |

  12. Consider the data The frequency of the upper limit of the median...

    Text Solution

    |

  13. The mean deviation for n observations x(1),x(2)…….x(n) from their medi...

    Text Solution

    |

  14. The mean deviation of the data 4,5,7,8,9,10,6 from the median is

    Text Solution

    |

  15. The mean deviation of the data 4,5,7,8,9,10,6 from the median is

    Text Solution

    |

  16. The variance of first 5 natural numbers is (i) 1 (ii) 2 (iii) 3...

    Text Solution

    |

  17. The standard deviation of first 11 nutural numbers is (i) 2 (ii) ...

    Text Solution

    |

  18. If for a distribution sum(x-7)=6 and sum(x-7)^(2)=78 and the total num...

    Text Solution

    |

  19. If for a distribution sumx(i)^2=2400 and sumx(i)=250 and the total num...

    Text Solution

    |

  20. The mean of 100 observations is 50 and their standard deviation is 5. ...

    Text Solution

    |