Problema Solution
In a wildlife reserve, 60 ducks are captured, tagged and then released. Later, 200 ducks are capture, examined and three if the 200 ducks are found to have tags. Estimate the number of ducks to be preserve.
Answer provided by our tutors
let 'n' represent the number of ducks to be preserved
60 : n = 3 : 200
by solving we find:
n = 4,000 ducks
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there are 4,000 ducks to be preserved.