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'.

[EX Q]: Problem: evaluate 248 + 64
Options: a ) 14 , b ) 26 , c ) 16 , d ) 36 , e ) 46
[EX A]: c

[EX Q]: Problem: a = 4 ^ 15 - 625 ^ 3 and a / x is an integer , where x is a positive integer greater than 1 , such that it does not have a factor p such that 1 < p < x , then how many different values for x are possible ?
Options: a ) none , b ) one , c ) two , d ) three , e ) four
[EX A]: c

[EX Q]: Problem: in a group of cows and hens , the number of legs are 30 more than twice the number of heads . the number of cows is
Options: a ) 15 , b ) 7 , c ) 10 , d ) 12 , e ) 14
[EX A]:
a