By weight, liquid X makes up 0.7 percent of solution P and 1.2 percent of solution Q. If 200 grams of solution P are mixed with 800 grams of solution Q, then liquid X accounts for what percent of the weight of the resulting solution?  Choices:
A) 1.2 %  B) 1.1 %  C) 1.0 %  D) 0.9 %  E) 0.8 %

Rationale: "the number of grams of liquid x is 0.7 ( 200 ) / 100 + 1.2 ( 800 ) / 100 = 1.4 + 9.6 = 11 grams . 11 / 1000 = 1.1 % the answer is b ."
Answer: B