SOLUTION: David took one and a half times as long as Billy to complete a project. If both of them took 20 days altogether, how long did David take to complete the project?
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Question 1051484: David took one and a half times as long as Billy to complete a project. If both of them took 20 days altogether, how long did David take to complete the project? Answer by advanced_Learner(501) (Show Source):
