Waiting for your answers... Answer the following work problem. Report your answer to the nearest tenth of a month. Alone, Petra can do a certain job in 19 months. When Petra and Mary work together, they can finish the same job in 5 months.How long would it take Mary to do the job alone? months
Answer the following work problem. Report your answer to the nearest tenth of a month.
Alone, Petra can do a certain job in 19 months. When Petra and Mary work together, they can finish the same job in 5 months.How long would it take Mary to do the job alone?