instruction:
In this task, you need to provide the correct option for a given problem from the provided options.
question:
Problem: find the ratio between 1 hr 30 minutes and 2 hrs 40 minutes . 
Options: a ) 9 : 16 , b ) 5 : 9 , c ) 12 : 17 , d ) 13 : 24 , e ) none of these
answer:
a


question:
Problem: the h . c . f . of two numbers is 32 and the other two factors of their l . c . m . are 13 and 14 . the larger of the two numbers is : 
Options: a ) 448 , b ) 299 , c ) 421 , d ) 460 , e ) 365
answer:
a


question:
Problem: a jar contains a mixture of ab in the ratio 4 : 1 . when 30 l of mixture is replaced with liquid b , ratio becomes 2 : 3 . how many liters of liquid a was present in mixture initially . 
Options: a ) 12 , b ) 48 , c ) 16 , d ) 20 , e ) 25
answer:

b