In this task, you need to provide the correct option for a given problem from the provided options.

[EX Q]: Problem: if 0.4 of a number is equal to 0.06 of another number , the ratio of the numbers is : 
Options: a ) 2 : 3 , b ) 3 : 4 , c ) 3 : 20 , d ) 20 : 3 , e ) 22 : 1
[EX A]: c

[EX Q]: Problem: how many factors does 36 ^ 2 have ? 
Options: a ) 2 , b ) 8 , c ) 24 , d ) 25 , e ) 26
[EX A]: d

[EX Q]: Problem: the sub - duplicate ratio of 25 : 49 is 
Options: a ) 4 : 3 , b ) 5 : 7 , c ) 6 : 4 , d ) 1 : 4 , e ) 2 : 3
[EX A]:
b