Answer: 26,775 widgets
Explanation:
The first buyer purchased 30% of the 45,000 widgets, which is (30/100) * 45,000 = 13,500 widgets.
So, the number of widgets left in the warehouse after the first purchase is 45,000 - 13,500 = 31,500 widgets.
The second buyer purchased 15% of the remaining widgets, which is (15/100) * 31,500 = 4,725 widgets.
Therefore, the number of widgets left in the warehouse after both purchases is 31,500 - 4,725 = 26,775 widgets.