SOLUTION: Gina and Cal can spray an orchard in 8 hours. Gina working alone would take 12 hours to do the job. How long would it take Cal working alone to do the job?

SOLUTION: Gina and Cal can spray an orchard in 8 hours. Gina working alone would take 12 hours to do the job. How long would it take Cal working alone to do the job?

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Question 449552: Gina and Cal can spray an orchard in 8 hours. Gina working alone would take 12 hours to do the job. How long would it take Cal working alone to do the job?
Answer by rwm(914) (Show Source): You can put this solution on YOUR website!
8/12+8/c=1
2/3+8/c=1
8/c=1/3
c=24 hrs for cal working alone.

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