SOLUTION: The average of 5 numbers is between 50 and l00. Their sum cannot be A)258 B)260 C)420 D)480 E)505

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Question 317699: The average of 5 numbers is between 50 and l00. Their sum cannot be
A)258 B)260 C)420 D)480 E)505
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
1.%28A%2BB%2BC%2BD%2BE%29%2F5%3E50
2.%28A%2BB%2BC%2BD%2BE%29%2F5%3C100
From eq. 1,
S=A%2BB%2BC%2BD%2BE%3E250
From eq. 2,
S=A%2BB%2BC%2BD%2BE%3C500
.
.
.
highlight%28250+%3C+S+%3C+500%29
E) is not within the range.
E) is the correct answer.