What is solution to 16 P in a C G?

The phrase "16 P in a C G" typically refers to "16 Pounds in a Cup Gallon," which is a unit of measurement. However, if you meant "16 Pints in a Gallon," then the solution is that there are 8 pints in a gallon, so 16 pints would equal 2 gallons. If you meant something else, please provide more context for a precise answer.