mixing salt solutionsyou mix 1950 gallons of a

Question

Mixing Salt Solutions

You mix 195.0 gallons of a mixture containing 12.00 wt% NaCl (sodium chloride) and 88.00 wt% water (solution density = 1.0837 g/cm³) with a V₂-gallon solution that is 20.00 wt% NaCl and 80.00 wt% water (solution density = 1.1453 g/cm³).  You want to produce a mixture containing 19.00 wt% NaCl.