Europa-Dyonisos SA produces wine. The company expects to produce 1.5 million two-litre bottles of Chablis in 2015.

Question:

Europa-Dyonisos SA produces wine. The company expects to produce 1.5 million two-litre bottles of Chablis in 2015. Europa-Dyonisos purchases empty glass bottles from an outside supplier. Its target closing stock of such bottles is 50 000; its opening stock is 20 000. For simplicity, ignore breakage.
Required
Calculate the number of bottles to be purchased in 2015.