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: if x : y = 3 : 5 , find the value of ( 2 x + 4 y ) : ( 3 x – y ) 
Options: a ) 13 : 2 , b ) 11 : 2 , c ) 13 : 3 , d ) 13 : 4 , e ) 13 : 5

Output: a


Input: Consider Input: Problem: what should be the least number to be added to the 3198 number to make it divisible by 8 ? 
Options: a ) 12 , b ) 17 , c ) 2 , d ) 77 , e ) 26

Output: c


Input: Consider Input: Problem: instead of multiplying a number by 5 , the number is divided by 5 . what is the percentage of error obtained ? 
Options: a ) 98 % , b ) 97 % , c ) 96 % , d ) 99 % , e ) 95 %


Output: c