Working together, it takes Sam, Jenna, and Francisco 2 hours to paint one room.  When Sam works alone, he can paint one room in 6 hours.  When Jenna works alone, she can paint one room in 4 hours.  Determine how long it would take Francisco to paint one room on his own.

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1.suppose Carlo and Jordan can do the project together in 4days. if Carlo can finish the project alone in 6 days. how longwill it take Jordan to do the project if he works alone?

2. Betty and Karen have been hired to paint the houses in a newdevelopment working together, the women can paint a house is 2/3the time that it takes Karen working alone. Betty takes 6 hours topaint a house alone, How long does it take Karen to paint a houseworking alone?

Working together, two roommates can paint their apartment in 6 hours.  Working alone, one person can complete the job in 2 hours LESS time than the other person working alone.  How long would each person take working alone?