SOLUTION: Mary alone can finish a painting job in 12 days. Gary alone can do the same jon in 20 days. Mary works alone for 4 days and then Gary joins in to help. In how many days will they f
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-> SOLUTION: Mary alone can finish a painting job in 12 days. Gary alone can do the same jon in 20 days. Mary works alone for 4 days and then Gary joins in to help. In how many days will they f
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Question 834217: Mary alone can finish a painting job in 12 days. Gary alone can do the same jon in 20 days. Mary works alone for 4 days and then Gary joins in to help. In how many days will they finish the job Answer by richwmiller(17219) (Show Source):
