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The mean of 5, 10, 15, and x is 12. What is the value of x?

Practice Questions

1 question
Q1
The mean of 5, 10, 15, and x is 12. What is the value of x?
  1. 8
  2. 10
  3. 12
  4. 14

Questions & Step-by-step Solutions

1 item
Q
Q: The mean of 5, 10, 15, and x is 12. What is the value of x?
Solution: Mean = (5 + 10 + 15 + x) / 4 = 12. Therefore, 30 + x = 48, so x = 18.
Steps: 0

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