SOLUTION: A tsunami destroyed 4/5 of a forest. If 10,800 trees were lost how many trees survived?

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Question 565982: A tsunami destroyed 4/5 of a forest. If 10,800 trees were lost how many trees survived?
Answer by ad_alta(240) About Me  (Show Source):
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Use a proportion: (4/5)/10800=(1/5)/x for 'x' the number of survivors. We get x=2700.