please answer b i already got the first answer

Homework: Ch1 HW Question 4, Problem 1.15 Part 2 of 2 > HW Score: 72.92%, 5.83 of 8 points Points: 0.5 of 1 Save In December, General Motors produced 6,600 customized vans at its plant in Detroit. The labor productivity at this plant is known to have been 0.10 vans per labor hour during that month. 340 laborers were employed at the plant that month. a) In the month of December the average number of hours worked per laborer = 194.1 hours/laborer (round your response to one decimal place). b) If productivity can be increased to 0.13 vans per hour, the average number of hours worked per laborer = hours/laborer (round your response to one decimal place)