What's the dilution?

Question

You have a 55 gallon drum full of product A. You take 33 gallons of product A and mix it with 22 gallons of water to make 55 gallons of product B. You take 22 gallons of product B and 33 gallons of water to make 55 gallons of product C. How many gallons of product A does it take to make 55 gallons of product C?

Answer 1

product B is 3/5 product A and 2/5 water.

 

3/5 x 22 = 66/5 gallons product A makes 55 gallons product C