a 10% liquid polymer is used making a polymer solution. how many pounds of liquid polymer should be mixed with water to produce 170 pounds of a 0.6% polymer solution?

Question

A 10% liquid polymer is to be used in making up a polymer solution, how many pounds of liquid polymer should be mixed with water to produce 170 pounds of a 0.6% polymer solution?

Answer 1

The reduction in strength is 0.6/10=3/50.

170lb is the the lower strength as weight or mass. It seems that 3/50 of this is the liquid polymer, so the amount is 3*170/50=10.2lb.