At a certain factory, 10 percent of the staplers produced on Monday were defective and 2 percent of the non-defective staplers were rejected by mistake. If 72 of the non-defective staplers were rejected, what was the number of staplers produced that day?
Choose the most appropriate option
A) 4,000	B) 4,200	C) 4,500	D) 4,800	E) 5,000
We're told that 10% of staplers in a factory are defective.   X = Total staplers   0.1X = defective staplers   0.9X = normal staplers   Next, we're told that 2% of the normal staplers were rejected by mistake and that this = 72 staplers.   0.9X(0.02) = 72   0.018X = 72   18X = 72,000   X = 4,000   Final 4,000nswer:   4,000
<result>A</result>
At a certain factory, 10 percent of the staplers produced on Monday were defective and 2 percent of the non-defective staplers were rejected by mistake. If 72 of the non-defective staplers were rejected, what was the number of staplers produced that day?