Task: Question Answering
Input (English): Problem: the average of 15 numbers is 75 . average of the first 8 of them is 68 and that of the last 8.00001 is 77 . find the 8.000001 th number ? 
Options: a ) 51 , b ) 87 , c ) 35 , d ) 75 , e ) 68
Output (English): c