SOLUTION: The average of 10 numbers is −10. If the sum of 6 of them is 100, what is the average of the other 4?

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Question 1146442: The average of 10 numbers is −10. If the sum of 6 of them is 100, what is the average of the other 4?
Answer by Alan3354(69443) About Me  (Show Source):
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The average of 10 numbers is −10. If the sum of 6 of them is 100, what is the average of the other 4?
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The average of 10 numbers is −10 ---> the sum is -100.
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If the sum of 6 of them is 100, what is the average of the other 4?
Sum of 6 + sum of 4 = -100
100 + sum of 4 = -100
sum of 4 = -200
Avg of 4 = -200/4 = -50