Problema Solution
A buyer purchases 20% of the 12000 widgets in a warehouse's inventory. The next day, another buyer purchases 10% of the remaining widgets. How many widgets are left in the warehouse?
Answer provided by our tutors
The total of ordered widgets is:
0.20*12,000 + 0.10*(12,000 - 0.20*12,000) =
= 2400 + 0.10*12,000(1 - 0.20) = 2400 + 1200*0.80 = 3,360 widgets
The number of widgets left is:
12,000 - 3,360 = 8,640 widgets
There are 8,640 widgets left in the warehouse.