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

[EX Q]: Problem: what number has a 5 : 1 ratio to the number 11 ? 
Options: a ) 22 , b ) 50 , c ) 55 , d ) 52 , e ) 12
[EX A]: c

[EX Q]: Problem: find the fraction which has the same ratio to 2 / 3 that 3 / 5 has to 6 / 7 
Options: a ) 1 / 5 , b ) 2 / 22 , c ) 3 / 4 , d ) 7 / 15 , e ) 5 / 6
[EX A]: d

[EX Q]: Problem: a certain car dealership sells economy cars , luxury cars , and sport utility vehicles . the ratio of economy to luxury cars is 3 : 1 . the ratio of economy cars to sport utility vehicles is 4 : 3 . what is the ratio of luxury cars to sport utility vehicles ? 
Options: a ) 9 : 8 , b ) 4 : 9 , c ) 3 : 2 , d ) 2 : 3 , e ) 1 : 2
[EX A]:
b