math word problem

[BodybldgDoc]

---

Members don't see this ad.

Need help with this one.

A chemistry teacher has 2 quarts of 25% acid solution and one quart of 40% solution. If she mixes these, what will be the concentration of acid in the final mixture?

 

[Ex_EE]

(.25*2+.4*1)/3 = .9/3 = 30%

 

[BodybldgDoc]

thank you Ex