The Dulac Box plant produces 500 cypress packing boxes in two-10 hour shifts. Due to higher demand, Dulac has decided to operate three eight-hour shifts instead. Dulac is now able to produce 600 boxes per day. What has happened to production:a. It has increased by 50 sets/shiftb. It has increased by 20 percentc. It has increased by 37.5 sets/hrd. It has decreased by 8.3 percente. It has decreased by 9.1 percent.

Production has increased 20/day

Step-by-step explanation:

In the first scenario production is 500/day and productivity 25 set/hour. After the changes, production is 600/day and 25 set/hour.

So productivity remains the same, nevertheless, as there are more productive hours per day, production raises, in this case the can be calculated as (New Production-Old Production) / Old Production = (600-500) / 500=100/500=0.2=20%.

As productivity remains the same, you do not ge more sets/shift, as shifts are shorter (8 instead of hours, so you get 200/shift instead of 250/shift). The rest of the option is false as productivity remains constant