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'.

[EX Q]: Problem: find the value of ( 55 + 113 / 78 ) × 78 
Options: a ) 4423 , b ) 4403 , c ) 4413 , d ) 2403 , e ) 4375
[EX A]: b

[EX Q]: 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
[EX A]: a

[EX Q]: Problem: 893.7 – 573.07 – 95.007 = ? 
Options: a ) 225.623 , b ) 224.777 , c ) 233.523 , d ) 414.637 , e ) none of these
[EX A]:
a