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Il takes Ron 12 hours to paint a house and it takes Rita 6 hours. How long should it take if they worked together?(A) 9
Il takes Ron 12 hours to paint a house and it takes Rita 6 hours. How long should it take if they worked together?(A) 9 hours(B) 18 hours(C) None of the choices are correct(D) 4 hours(E) 3 hours
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Multiobjective Programming And Planning
Authors: Jared L Cohon
1st Edition
048615307X, 9780486153070
