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: lilly has 10 fish and rosy has 12 fish . in total , how many fish do they have in all ? 
Options: a ) 18 , b ) 20 , c ) 22 , d ) 24 , e ) 26
[EX A]: c

[EX Q]: Problem: evaluate 64 / . 08 
Options: a ) 800 , b ) 500 , c ) 505 , d ) none of these , e ) 506
[EX A]: a

[EX Q]: Problem: a number is doubled and 4 is added . if the resultant is divided by 5 , it becomes 25 . what is that number ? 
Options: a ) 73.5 , b ) 68 , c ) 60.5 , d ) none of these , e ) can not be determined
[EX A]:
c