SOLUTION: Carem has six different positive whole numbers and their average is 18. She picks five of the six numbers and takes their average. She gets 20. What number did Carem NOT pick?

Algebra ->  Average -> SOLUTION: Carem has six different positive whole numbers and their average is 18. She picks five of the six numbers and takes their average. She gets 20. What number did Carem NOT pick?       Log On


   



Question 869193: Carem has six different positive whole numbers and their average is
18. She picks five of the six numbers and takes their average. She
gets 20. What number did Carem NOT pick?
Thank you!

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 
Hi,
%285%2A20+%2B+x%29%2F6 = 18
x = 108 - 100 = 8
Checking
108%2F6+=+18