Subject: mathqa
Question: by weight , liquid x makes up 0.8 percent of solution a and 1.8 percent of solution b . if 250 grams of solution a are mixed with 700 grams of solution b , then liquid x accounts for what percent of the weight of the resulting solution ?
Option: 
A: 15 %
B: 10 %
C: 1.46 %
D: 1.93 %
Answer: C