In this task, you need to answer the given multiple-choice question on the general math. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.

[Q]: Problem: the mean of 50 observations was 36 . it was found later that an observation 48 was wrongly taken as 23 . the corrected new mean is : 
Options: a ) 36.5 , b ) 35 , c ) 34 , d ) 33 , e ) 32.5
[A]: a


[Q]: Problem: evaluate 64 / . 08 
Options: a ) 800 , b ) 500 , c ) 505 , d ) none of these , e ) 506
[A]: a


[Q]: Problem: ( x + 7 ) is a factor in x ^ 2 - mx - 35 . what is the value of m ? 
Options: a ) - 3 , b ) - 2 , c ) - 4 , d ) - 5 , e ) - 6
[A]:
b