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

[EX Q]: Problem: the weights of one liter vegetable ghee packet of two brands ‘ a ’ and ‘ b ’ are 900 gm and 700 gm respectively . if they are mixed in the ratio of 3 : 2 by volumes to form a mixture of 4 liters , what is the weight ( in kg ) of the mixture ? 
Options: a ) 3.84 , b ) 1.75 , c ) 3.28 , d ) 2.72 , e ) none of these
[EX A]: c

[EX Q]: Problem: the duplicate ratio of 6 : 4 is ? 
Options: a ) 1 : 2 , b ) 9 : 4 , c ) 1 : 8 , d ) 1 : 18 , e ) 1 : 13
[EX A]: b

[EX Q]: Problem: what number has a 15 : 1 ratio to the number 10 ? 
Options: a ) 130 , b ) 100 , c ) 200 , d ) 150 , e ) 120
[EX A]:
d