If 75% is white chocolate, then 25% is peppermint. The candy has 3 lbs of peppermint.
So 25% of the total candy is 3 lbs. peppermint
0.25x = 3
x = 3 / 0.25
x = 12
So there is a total of 12 lbs of candy
Hint: x being the total # of lbs of candy
If there is 12 lbs of candy, and 3 lbs of peppermint, then (12 - 3) = 9 lbs is white chocolate.