Lao and Lamar fill egg cartons with eggs. Lao just started the job and can fill only 20 cartons an hour. Lamar has significant on-the job experience and can fill 40 cartons an hour. Both Lao and Lamar work 40 hours a week. Lao's average weekly productivity Is _ cartons; Lamar's average weekly productivity is _ cartons; and as a team their average weekly productivity is cartons.:02Multiple Choice800; 2,000; 1,600800; 1,600; 1,20020: 40:3020; 40; 60