Task: Question Answering
Input (English): Problem: a statue is being carved by a sculptor . the original piece of marble weighed 140 kg . in the first week 60 percent is cut away . in the second week 40 percent of the remainder is cut away . in the third week the statue is completed when 30 percent of the remainder is cut away . what is the weight of the final statue ? 
Options: a ) 24 kg , b ) 23 kg , c ) 28 kg , d ) 25 kg , e ) 27 kg
Output (English): a