Task: Question Answering
Input (English): Problem: jancy had 100 currency notes in all , some of which are of rs 70 denomination and the remaining of rs 50 denomination . the total amount of all these currency notes was rs . 5000 . how much amount ( in rs ) did she have in the denomination of rs 50 ? 
Options: a ) 103 , b ) 102 , c ) 100 , d ) 105 , e ) 106
Output (English): c