instruction:
In this task, you need to provide the correct option for a given problem from the provided options.
question:
Problem: the compound ratio of 1 : 2 , 3 : 2 and 4 : 5 ? 
Options: a ) 1 : 9 , b ) 1 : 7 , c ) 1 : 2 , d ) 3 : 5 , e ) 1 : 4
answer:
d


question:
Problem: what number has a 5 : 1 ratio to the number 9 ? 
Options: a ) 45 , b ) 50 , c ) 88 , d ) 52 , e ) 12
answer:
a


question:
Problem: if log 2 = 0.30103 and log 3 = 0.4771 , find the number of digits in ( 648 ) 5 
Options: a ) 14.05 , b ) 14.02 , c ) 277 , d ) 288 , e ) 222
answer:

a