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

[Q]: Problem: ratio between rahul and deepak is 4 : 3 , after 6 years rahul age will be 26 years . what is deepak present age . 
Options: a ) 14 , b ) 15 , c ) 20 , d ) 22 , e ) 24
[A]: b


[Q]: Problem: jo ' s collection contains us , indian and british stamps . if the ratio of us to indian stamps is 4 to 2 and the ratio of indian to british stamps is 5 to 1 , what is the ratio of us to british stamps ? 
Options: a ) 5 : 1 , b ) 10 : 5 , c ) 15 : 2 , d ) 20 : 2 , e ) 25 : 2
[A]: d


[Q]: Problem: if log 1087.5 = 6.9421 , then the number of digits in ( 875 ) 10 is ? 
Options: a ) 30 , b ) 28 , c ) 80 , d ) 26 , e ) 25
[A]:
c