Task: Question Answering
Input (English): Problem: at what price must an book costing $ 47.50 be marked in order that after deducting 15 % from the list price . it may be sold at a profit of 25 % on the cost price ? 
Options: a ) 72.85 , b ) 69.85 , c ) 62.85 , d ) 82.85 , e ) 60.85
Output (English): b