60 water beetles were caught and marked before being released to their pond. The next day, another...
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60 water beetles were caught and marked before being released to their pond. The next day, another 60 water beetles were caught; 20 of which had been marked. A bout how many water beetles were in the pond.
Related Book For
Project Management The Managerial Process
ISBN: 9781260570434
8th Edition
Authors: Eric W Larson, Clifford F. Gray
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