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Calculate the average of the following set of numbers: 12, 15, 18, 21, 24.
  • a)
    19
  • b)
    18
  • c)
    20
  • d)
    21
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Calculate the average of the following set of numbers: 12, 15, 18, 21,...
Average = (12 + 15 + 18 + 21 + 24) / 5 = 90 / 5 = 18. Therefore, the average is 18.
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Most Upvoted Answer
Calculate the average of the following set of numbers: 12, 15, 18, 21,...
Understanding the Average
The average, also known as the mean, is calculated by summing all the numbers in a set and then dividing by the count of those numbers. Let's break down the calculation for the provided set of numbers: 12, 15, 18, 21, and 24.
Step 1: Sum the Numbers
- Start by adding all the numbers together:
- 12 + 15 + 18 + 21 + 24
Step 2: Perform the Addition
- Calculate the sum:
- 12 + 15 = 27
- 27 + 18 = 45
- 45 + 21 = 66
- 66 + 24 = 90
- Therefore, the total sum is 90.
Step 3: Count the Numbers
- Next, count how many numbers are in the set:
- There are 5 numbers: 12, 15, 18, 21, and 24.
Step 4: Calculate the Average
- Finally, divide the sum by the count:
- Average = Total Sum / Count
- Average = 90 / 5
Final Calculation
- 90 divided by 5 equals 18.
Conclusion
- The average of the set of numbers 12, 15, 18, 21, and 24 is 18.
Thus, the correct answer is option 'B'.
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Calculate the average of the following set of numbers: 12, 15, 18, 21, 24.a)19b)18c)20d)21Correct answer is option 'B'. Can you explain this answer?
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