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The average of two numbers is 30. If one number is 20, what is the other number?

Practice Questions

1 question
Q1
The average of two numbers is 30. If one number is 20, what is the other number?
  1. 40
  2. 50
  3. 60
  4. 70

Questions & Step-by-step Solutions

1 item
Q
Q: The average of two numbers is 30. If one number is 20, what is the other number?
Solution: Mean = (20 + x) / 2 = 30.\n\n20 + x = 60\n\nx = 60 - 20 = 40.
Steps: 0

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