Bottle A is four-fifths full of water. Bottle B will hold 16 pints of water. When the contents of bottle A are poured into bottle B , bottle B is three-fourths full of water. How many pints does bottle A hold when full?
a = Volume of Bottle A b = Volume of Bottle B
Sentence 2 tells us that b = 16 pints.
Comparing sentence 1 with sentence 3 gives the equation 4/5*a = 3/4*b.
Since we know the value of b, we can substitute it into the equation we got from sentences 1 and 3.
4/5*a = 3/4 * 16
4/5*a = 3*4
4/5*a = 12
4*a = 60
a = 15 Pints