Task: Question Answering
Input (English): Problem: a certain fruit stand sold apples for $ 0.80 each and bananas for $ 0.50 each . if a customer purchased both apples and bananas from the stand for a total of $ 7.20 , what total number of apples and bananas did the customer purchase ? 
Options: a ) 10 , b ) 11 , c ) 12 , d ) 13 , e ) 14
Output (English): c