SOLUTION: Add all the given life expectancies, and you'll get 360. Then divide 360 by the number of batteries, i.e. 20. Your answer should be 18.

SOLUTION: Add all the given life expectancies, and you'll get 360. Then divide 360 by the number of batteries, i.e. 20. Your answer should be 18.

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Question 1103049: Add all the given life expectancies, and you'll get 360. Then divide 360 by the number of batteries, i.e. 20. Your answer should be 18.

Answer by dongen(1) (Show Source): You can put this solution on YOUR website!
Add all the given life expectancies, and you'll get 360. Then divide 360 by the number of batteries, i.e. 20. Your answer should be 18.

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