Task: Question Answering
Input (English): Problem: the price of a car is marked at $ 12,000 . if the car has successive discounts of 20 % , 15 % and 5 % , then at what price does a customer buy the car ? 
Options: a ) $ 7524 , b ) $ 7752 , c ) $ 7880 , d ) $ 8196 , e ) $ 8324
Output (English): b