Task: Question Answering
Input (English): Problem: john purchased a grinder and a mobile for rs . 15000 & rs . 10000 respectively . he sold the grinder at a loss of 4 % and the mobile phone at a profit of 10 % . overall how much he make a profit . 
Options: a ) s . 400 , b ) s . 120 , c ) s . 420 , d ) s . 450 , e ) s . 290
Output (English): a