Working alone, it takes Maria 15 hours to harvest a field. DeShawn can harvest the same field
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Working alone, it takes Maria 15 hours to harvest a field. DeShawn can harvest the same field in 10 hours. How long would it take them if they worked together?
Related Book For
Modeling the Dynamics of Life Calculus and Probability for Life Scientists
ISBN: 978-0840064189
3rd edition
Authors: Frederick R. Adler
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