SOLUTION: The mean of a collection of six numbers is 35. When three more numbers are added to the collection, the mean becomes 42. What is the mean of the three numbers added to the collecti
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Question 282786: The mean of a collection of six numbers is 35. When three more numbers are added to the collection, the mean becomes 42. What is the mean of the three numbers added to the collection?
Answer by Greenfinch(383) (Show Source): You can put this solution on YOUR website!
If mean is 35, total is 6 x 35 = 210
With 9 numbers, the mean is 42, so the total is 378
Difference is 168 which is the total of the three new numbers
Mean of the three numbers is 168/8 = 56
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