SOLUTION: The mean of 4 numbers is 6 .When a fifth number is added, the mean becomes 7.what is the fifth number?
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Question 850403: The mean of 4 numbers is 6 .When a fifth number is added, the mean becomes 7.what is the fifth number?
Answer by Seutip(231) (Show Source): You can put this solution on YOUR website!
The problem itself says that the sum of the numbers were 24,
since getting mean is the sum of the numbers divided by four which is 6.
If x is added the mean will be 7, which means;
Therefore the fifth number is 11. :)
Thank you!
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