Show transcribed image text EXERCISES SECTION 8 Work Problems Solve each of the following problems using the 5-step procs u 1,3,n 5 1. Alan can type a research paper in 6 hours. With Steve's help, the paper can be typed rocess: 5 in 4 hours. Find how long it takes Steve to type the paper alone. 2. An experienced roofer can roof a house in 26 hours. A beginning roofer needs 39 hours for the same job. Find how long it takes for the two to do the job working together. A new printing press can print newspapers twice as fast as the old one. The old one can print the afternoon edition in 4 hours. Find how long it takes to print the afternoon edition if both printers are operating. 3. Three computers can do a sorting task in 20 minutes, 30 minutes, and 60 minutes, respectively. Find how long it takes to do the sorting task if all three computers run together. 4. If Hank can do a job in 5 hours and Hank and Sarah working together can do the same job in 2 hours, find how long it takes Sarah to do the job alone.