Question

A steel bar that originally weighed 15.62 pounds is turned down on a lathe until it weighs 14.48 pounds. What percent of the original bar is waste? (Round your answer to the nearest tenth.)

Answer 1

1. The information, given in the problem, that you need to solve it, is:
 
 - A steel bar that originally weighed 15.62 pounds.
 - Then it weighs 14.48 pounds.
 
 2. Therefore:
 
 15.62 pounds-----100%
 14.48 pounds-----x
 
 x=(14.48)(100)/15.62
 x=92.70%
 
 3. Now, you must substract both percents:
 
 =100%-92.70%
 =10.38%
 
 The answer is: 7.3%