1- A plumbing factory manufactures sewage covers at a rate of 1200 for every 10 periodic hours, the manufacturing productivity per hour is (2 Points) 130 122 120 150 2. An air conditioner factory makes 1500 air conditioners for every 10 periodic hours. The factory works to improve production by 20%. What is the productivity per hour? (2 Points) 180 185 175 182 3. Tire factory produces 5,000 tires in two tournaments. The number of hours of one rotation is 8 hours. Productivity improved by an average of 35 percent. What is the productivity per hour? (2 Points) 422 550 470 522 4. Door handles factory produces 8,500 handles in two rounds, each period lasting 8 hours. Productivity improved by an average of 40 percent. What is the productivity per hour? (2 Points) 744 750 670 700 5- Heaters factory produces 700 heaters every 8 hours. Improvements were made to the production line, resulting in an increase of production by 15 percent. The productivity per hour is the Immersive Reader (2 Points) 100 120 130 150