Task: Question Answering
Input (English): Problem: the charge for a single room at hotel p is 50 percent less than the charge for a single room at hotel r and 20 percent less than the charge for a single room at hotel g . the charge for a single room at hotel r is what percent greater than the charge for a single room at hotel g ? 
Options: a ) 50 % , b ) 60 % , c ) 75 % , d ) 80 % , e ) 90 %
Output (English): b