$$12.5 \%$$ of Year $$7$$ pupils at Withington play the violin.  There are $$11$$ pupils who play the violin in Year $$7$$.  How many pupils are there in total in Year $$7$$?  ~\uline{~~~~~~~~~~}~ 
Overseas Competition->Knowledge Point->Word Problem Modules->Solving Problems Involving Fractions and Percentages->Finding the Base