caluculate how many lbs of sulpher are contained in 3,805 lbs of coal that has 5% pure sulpher content

calculate how many lbs of sulfur are contained in 3,805 lbs of coal that have 5%of pure sulfur.

 

Just multiply:

5% x 3,805 =5/100 x 3,805 =190.25 pounds of pure sulfur.