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The mean of 5, 10, 15, and 20 is what?

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Question: The mean of 5, 10, 15, and 20 is what?

Options:

  1. 10
  2. 12.5
  3. 15
  4. 17.5

Correct Answer: 15

Solution: 

Mean = (5 + 10 + 15 + 20) / 4 = 50 / 4 = 12.5.

The mean of 5, 10, 15, and 20 is what?

Practice Questions

Q1
The mean of 5, 10, 15, and 20 is what?
  1. 10
  2. 12.5
  3. 15
  4. 17.5

Questions & Step-by-Step Solutions

The mean of 5, 10, 15, and 20 is what?
  • Step 1: Add all the numbers together: 5 + 10 + 15 + 20.
  • Step 2: Calculate the sum: 5 + 10 = 15, then 15 + 15 = 30, and finally 30 + 20 = 50.
  • Step 3: Count how many numbers there are. In this case, there are 4 numbers: 5, 10, 15, and 20.
  • Step 4: Divide the total sum (50) by the number of numbers (4): 50 / 4.
  • Step 5: Calculate the division: 50 divided by 4 equals 12.5.
  • Mean Calculation – The mean is calculated by summing a set of numbers and dividing by the count of those numbers.
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