If x is an integer, and 144 < x^2 <= 361, which of the following is the sum of all possible values of x? Choose the correct option:
A) 135  B) 124  C) 116  D) None of the above  E) 105
The range of x is from 13 .. to 19 and -13 to -19 so the sum is 0 hence ans None of the above, I guess, unless I am missing something!
<result>D</result>
If x is an integer, and 144 < x^2 <= 361, which of the following is the sum of all possible values of x?