a person working with his cousin can refinish a table in 8 hours working alone his cousin can complete the job in 12 how long will it take to person to refinish the table or working alone
Together, they refinish 1/8th table per hour. Alone, the cousin does 1/12th table per hour. So: 1/8-1/12=1/24 1/1/24=24 hours for the person to finish the table by themself ☺☺☺☺