In this task, you need to answer the given multiple-choice question on the general math. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.

Input: Consider Input: Problem: a , b and c have rs . 450 between them , a and c together have rs . 200 and b and c rs . 350 . how much does c have ?
Options: a ) a ) 100 , b ) b ) 110 , c ) c ) 120 , d ) d ) 130 , e ) e ) 140

Output: a

Input: Consider Input: Problem: mary ' s income is 60 % more than tim ' s income and tim ' s income is 10 % less than juan ' s income . what % of juan ' s income is mary ' s income .
Options: a ) 144 % , b ) b . 120 % , c ) 96 % , d ) 80 % , e ) 64 %

Output: a

Input: Consider Input: Problem: s is a set of 64 consecutive multiples of 4 . if the smallest number in s is 68 , then the greatest number in s is
Options: a ) 198 , b ) 297 , c ) 320 , d ) 402 , e ) 405
Output: c