Home
Class 7
MATHS
Find the mean of first seven even natura...

 Find the mean of first seven even natural numbers

Text Solution

AI Generated Solution

The correct Answer is:
To find the mean of the first seven even natural numbers, follow these steps: ### Step 1: Identify the first seven even natural numbers. The first seven even natural numbers are: - 2, 4, 6, 8, 10, 12, 14 ### Step 2: Calculate the sum of these numbers. Now, we will add these numbers together: - \( 2 + 4 + 6 + 8 + 10 + 12 + 14 \) Calculating the sum: - \( 2 + 4 = 6 \) - \( 6 + 6 = 12 \) - \( 12 + 8 = 20 \) - \( 20 + 10 = 30 \) - \( 30 + 12 = 42 \) - \( 42 + 14 = 56 \) So, the total sum is \( 56 \). ### Step 3: Count the total number of even natural numbers. We have identified that there are 7 even natural numbers in our list. ### Step 4: Use the mean formula. The formula for mean is: \[ \text{Mean} = \frac{\text{Sum of all numbers}}{\text{Total numbers}} \] Substituting the values we calculated: \[ \text{Mean} = \frac{56}{7} \] ### Step 5: Perform the division. Now, we divide \( 56 \) by \( 7 \): - \( 56 \div 7 = 8 \) ### Conclusion: The mean of the first seven even natural numbers is \( 8 \). ---
Promotional Banner

Topper's Solved these Questions

  • COLLECTION AND ORGANISATION OF DATA (MEAN, MEDIAN AND MODE)

    RS AGGARWAL|Exercise EXERCISE 21B|10 Videos
  • COLLECTION AND ORGANISATION OF DATA (MEAN, MEDIAN AND MODE)

    RS AGGARWAL|Exercise EXERCISE 21C|5 Videos
  • COLLECTION AND ORGANISATION OF DATA (MEAN, MEDIAN AND MODE)

    RS AGGARWAL|Exercise SOLVED EXAMPLES|8 Videos
  • BAR GRAPHS

    RS AGGARWAL|Exercise EXERCISE 22|22 Videos
  • CONGRUENCE

    RS AGGARWAL|Exercise EXERCISE|18 Videos

Similar Questions

Explore conceptually related problems

Find the mean of the first ten even natural numbers.

Find the median of first nine even natural numbers.

Find the median of first 10 even natural numbers.

Find the mean of first 10 even natural numbers.

Find the mean of first eleven natural numbers.

Find the mean of first eleven natural numbers.

The mean of first seven even natural numbers is (a)7 (b) 8 (c) 9 (d) 6

Find the median of the first 50 even natural numbers.

Find the sum of first n even natural numbers.

Write the sum of first n even natural numbers.

RS AGGARWAL-COLLECTION AND ORGANISATION OF DATA (MEAN, MEDIAN AND MODE)-EXERCISE 21A
  1. Define the terms: (i) Data (ii) Raw data (iii) Array (iv) Tabu...

    Text Solution

    |

  2. A die was thrown 20 times and the following outcomes were recorded Ar...

    Text Solution

    |

  3. The daily wages (in) of 15 workers in a factory are given below Arrang...

    Text Solution

    |

  4. Write the data given below in ascending order and prepare the frequenc...

    Text Solution

    |

  5. Fill in the blanks (i) Data means information in the form of figures

    Text Solution

    |

  6. Fill in the blanks Q(ii)Data obtained in the form is called raw data

    Text Solution

    |

  7. Fill in the blanks Q(iii)Arranging the numerical figures in ascending ...

    Text Solution

    |

  8. Fill in the blanks Q(iv)The number of times a particular observation o...

    Text Solution

    |

  9. Fill in the blanks Q(v)Arranging the data in the form of a table is ca...

    Text Solution

    |

  10. Find the mean of first five natural numbers

    Text Solution

    |

  11. Find the mean of first six odd natural numbers

    Text Solution

    |

  12. Find the mean of first seven even natural numbers

    Text Solution

    |

  13. Find the mean of first five prime numbers

    Text Solution

    |

  14. Find the mean of first six multiples of 5

    Text Solution

    |

  15. The following table shows the weights (in kg) of 15 workers in a facto...

    Text Solution

    |

  16. The daily wages (in rupees) of 60 workers in a factory are given below...

    Text Solution

    |

  17. The heights (in cm) of 90 plants in a garden are given below Find the ...

    Text Solution

    |

  18. The ages (in years) of 50 players of a school are given below Find the...

    Text Solution

    |

  19. The heights (in cm) of 40 boys were measured and recorded as under Fin...

    Text Solution

    |