There are $$18$$ chocolates in Swee Tuth\textquotesingle s box, $$2$$ each of $$9$$ flavours. She likes only $$6$$ of the flavours. If she picks a chocolate at random, what is the probability of her getting one she doesn\textquotesingle t like? 
Overseas Competition->Knowledge Point->Word Problem Modules->Solving Problems Involving Fractions and Percentages->Finding the Rate
Out of $$18$$ chocolates there are $$6\times2=12$$ of the flavours that she likes. So the probability of Swee Tuth getting one she doesn\textquotesingle t like is $$\frac{6}{18} =\frac{1}{3}$$. 