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

[EX Q]: Problem: if log 1087.5 = 1.9421 , then the number of digits in ( 875 ) 10 is ? 
Options: a ) 30 , b ) 28 , c ) 27 , d ) 26 , e ) 25
[EX A]: a

[EX Q]: Problem: a certain fruit stand sold apples for $ 0.70 each and bananas for $ 0.60 each . if a customer purchased both apples and bananas from the stand for a total of $ 6.30 , what total number of apples and bananas did the customer purchase ? 
Options: a ) 8 , b ) 9 , c ) 10 , d ) 11 , e ) 12
[EX A]: c

[EX Q]: Problem: a ratio between two numbers is 8 : 9 and their l . c . m . is 432 . the first number is 
Options: a ) 60 , b ) 45 , c ) 50 , d ) 48 , e ) none
[EX A]:
d