Question 1. (2 points) Complete the scraper-pusher load time optimization spreadsheet discussed in the lecture. Use the following data to populate your Excel spreadsheet. A project has only one CAT 631 E scraper available, but many pushers can be assigned to the project. The project has the following conditions:  Haul distance = 800 meter  Return distance = 900 meter  Average haul speed = 22 km/hr  Average return speed = 36 km/hr  Dump time = 1.2 min What is the optimum scraper-pusher loading time for this project? Please also submit your completed Excel spreadsheet.