The first shirt is sold at twice the selling price of the second shirt. The first shirt is sold at 8% profit and the second shirt is sold at a 3% loss. What is the overall percentage profit on the shirts (Rounded off to two decimal place)?

Solution : 

2*A*97% =  B*108
A*97 = B*54
Now, using concept of avg 
97 : 54
+8%: -3%
__________
614/151 =~ 4.07% Ans.