SOLUTION: The average of 7 numbers is 39. Two of the numbers whose sum is 83 are removed. What is the average of the remaining numbers?
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Question 227172: The average of 7 numbers is 39. Two of the numbers whose sum is 83 are removed. What is the average of the remaining numbers?
Found 2 solutions by solver91311, Alan3354:
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
To calculate the average of 7 numbers, you must have added the seven numbers and then divided by 7. So if that result is 39, the sum of the seven numbers must have been 7 times 39. From that amount, subtract 83. Then, since you removed two numbers, divide by 5.
John
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
The average of 7 numbers is 39. Two of the numbers whose sum is 83 are removed. What is the average of the remaining numbers?
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The sum is the avg x the # of members = 39*7 = 273
(273 - 83) = 190
There are now 5 numbers, so the avg is 190/5 = 38
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