Home
Class 10
MATHS
Donations (in rupees) are given for a fa...

Donations (in rupees) are given for a fare by the 100 students of a school. In the following table rate of donation and the number of students are given.

In the above data, the rate of donation of 24 students is unknown , but it is known to us that the average rate of donation is Rs. 1.27 . Find teh unknown frequency.

Promotional Banner

Topper's Solved these Questions

  • MEASURES OF CENTRAL TENDENCY

    CALCUTTA BOOK HOUSE|Exercise EXERCISE|36 Videos

  • CONSTRUCTION: CONSTRUCTION OF TANGENT TO A CIRCLE

    CALCUTTA BOOK HOUSE|Exercise Exercise-8.2|5 Videos

  • MEDIAN AND MODE

    CALCUTTA BOOK HOUSE|Exercise EXERCISE|20 Videos

Similar Questions

Explore conceptually related problems

The frequency distributions of the weekly wages of some labourers of an industry are given below : The number of labourers having Rs. 25 weekly wages is unknown. But it is known that the average weekly wages of a labourer is Rs. 27.50 . Find the unknown frequency .

The average of weights (in kg) and the number of students of a school of given below. Find their collective average.

The frequency distribution of the marks obtained in a school is given below. In the table, the number of students who obtained marks from 31 to 40 , is unknown . But it is known that the average of total work obtained by the students is 42.85. Find the lost frequency.

The donations given to an orphanage home by the students of different classes of a secondary school are given below. Find the mean, median and mode of the data.

Find the day of average absence of each and every student from the following given table :

A survey conducted on 20 households in a locality by a group of students resulted in the following frequency table for the number of family members in a household. Find the mode of this data.

Find the median and mode of the weights (in kg) of 100 students, the frequency distribution of which is given in question number 14 in exercise -1.

A student noted the number of cars passing thorugh a spot on a road for 100 periods, each of 3 minutes, and summarised this in the table given below. Find the mode of the data.

The following distribution distribution given the state-wise, teacher-student ratio in higher secondary schools of India. Find the mode and mean of this data. Interpret the two measures.

After retirement, Akhilbabu donated 1/4 part of his property to local library, 1/6 part of the remaining property was given to his wife and rest was divided equally among his two sons. Let us calculate to find, what part of his property was given to his wife and each of two sons.

CALCUTTA BOOK HOUSE-MEASURES OF CENTRAL TENDENCY-EXERCISE
  1. The frequency distribution of the monthly incomes (in rupees) of the w...

    Text Solution

    |

  2. The average of weights (in kg) and the number of students of a school ...

    Text Solution

    |

  3. The arithmetic mean of the marks obtained in 8 different subjects in a...

    Text Solution

    |

  4. The average of the collective ages of 4 classes in a school is 8.5 yea...

    Text Solution

    |

  5. If the average temperature of a place be 105.5^(@) F in Fahrenheit sca...

    Text Solution

    |

  6. Donations (in rupees) are given for a fare by the 100 students of a sc...

    Text Solution

    |

  7. Find the average height of the students from the given table.

    Text Solution

    |

  8. Find the average income (in rupees) of the workers from the following ...

    Text Solution

    |

  9. The frequency distribution of the marks obtained in a school is given ...

    Text Solution

    |

  10. Part of the weekly expenditure of 1000 families is given in the follow...

    Text Solution

    |

  11. Average monthly income of 50 persons is Rs 270.00 . Later on it is fou...

    Text Solution

    |

  12. The monthly salaries of 20 employees of a commercial enterprise are gi...

    Text Solution

    |

  13. The number of students in a class is 60 . The average of the ages of t...

    Text Solution

    |

  14. The arithmetic mean of two numbers is 10 and their geometric mean is 8...

    Text Solution

    |

  15. Find the geometric mean of the 2(2)/(7), 3, 1(3)/(4) and 1(1)/(3)

    Text Solution

    |

  16. Find the geometric mean of the 45,20,12,75 and 30

    Text Solution

    |

  17. If the arithmetic mean of two numbers be 10 and their harmonic mean is...

    Text Solution

    |

  18. A person have to go 4 kilometers away from a city. He has to go 2 kilo...

    Text Solution

    |

  19. While ascending a mountain, a car go 8 kilometre consuming one litre o...

    Text Solution

    |

  20. The average weight of the following frequency distribution is 58.5 kil...

    Text Solution

    |