Task: Question Answering
Input (English): Problem: a shopkeeper sells 500 metres of cloth for rs . 15000 at a loss of rs . 10 per metre . find his cost price for one metre of cloth ? 
Options: a ) s . 40 , b ) s . 12 , c ) s . 96 , d ) s . 50 , e ) s . 13
Output (English): a