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

[EX Q]: Problem: what is the square root of 261,121 ? 
Options: a ) 476 , b ) 489 , c ) 497 , d ) 511 , e ) 524
[EX A]: d

[EX Q]: Problem: sachin is older than rahul by 7 years . if the ratio of their ages is 11 : 9 , find the age of sachin 
Options: a ) 24.5 , b ) 24.8 , c ) 38.5 , d ) 24.88 , e ) 24.19
[EX A]: c

[EX Q]: Problem: in a ratio which is equal to 4 : 6 , if the antecedent is 30 , then the consequent is ? 
Options: a ) 72 , b ) 85 , c ) 64 , d ) 51 , e ) 45
[EX A]:
e