Task: Question Answering
Input (English): Problem: sowdharya had 90 currency notes in all , some of which are of rs 95 denomination and the remaining of rs 45 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 45 ? 
Options: a ) 75 , b ) 72 , c ) 71 , d ) 76 , e ) 73
Output (English): c