TASK DEFINITION: In this task, you need to provide the correct option for a given problem from the provided options.
PROBLEM: Problem: bag a contains red , white and blue marbles such that the red to white marble ratio is 1 : 3 and the white to blue marble ratio is 2 : 3 . bag b contains red and white marbles in the ratio of 1 : 4 . together , the two bags contain 26 white marbles . how many red marbles could be in bag a ? 
Options: a ) 1 , b ) 3 , c ) 4 , d ) 2 , e ) 8

SOLUTION: d

PROBLEM: Problem: in a ratio which is equal to 3 : 4 , if the antecedent is 12 , then the consequent is ? 
Options: a ) 12 , b ) 16 , c ) 20 , d ) 22 , e ) 25

SOLUTION: b

PROBLEM: Problem: the duplicate ratio of 1 : 4 is ? 
Options: a ) 1 : 2 , b ) 1 : 4 , c ) 1 : 8 , d ) 1 : 18 , e ) 1 : 13

SOLUTION:
c