Task: Question Answering
Input (English): Problem: a library branch originally contained 18360 volumes , 30 % of which were fiction novels . 1 / 3 of the volumes were transferred to another location and 1 / 2 of the volumes transferred were fiction novels . what percent of the remaining collection was fiction novels ? 
Options: a ) 2.5 % , b ) 20 % , c ) 28.3 % , d ) 45.2 % , e ) 73.6 %
Output (English): b