Task: Question Answering
Input (English): Problem: 4 / 15 of 5 / 7 of a number is greater than 4 / 9 of 2 / 5 of the same number by 8 . what is half of that number ? 
Options: a ) 305 , b ) 315 , c ) 345 , d ) 325 , e ) 335
Output (English): b