SOLUTION: The average of 5 test scores is a 78. What is the fifth score if the first 4 scores are 71, 92, 68 and 84?

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Question 771593: The average of 5 test scores is a 78. What is the fifth score if the first 4 scores are 71, 92, 68 and 84?
Answer by Cromlix(4381) About Me  (Show Source):
You can put this solution on YOUR website!
The average of 5 test scores is a 78
The total is 5 * 78 = 390
Total of the first four scores =
71+92+68+84= 315
390 - 315 = 75
This is the fifth score.
Hope this helps.
:-)