Each Time an Aluminum Beverage Can Is Recycled, Some Amount

Multiple Choice

Each time an aluminum beverage can is recycled, some amount of the material is lost due to a variety of reasons. If each recycling step is 90% efficient, what percent of the original material remains if a can is recycled 6 times? Round to the nearest tenth of a percent.

A) 63.2%
B) 56.5%
C) 57.9%
D) 53.1%