If p^2 – 13p + 40 = x, and p is a positive integer between 1 and 10, inclusive, what is the probability that x < 0?	Choose the correct choice from the following answers:
A) 1/10
B) 2/5
C) 1/5
D) 3/5
E) 3/10
(p-5)(p-8) = x   p = 6 or 7 for this to be true, so   2/10 = 1/5   Ans :1/5
<result>C</result>
If p^2 – 13p + 40 = x, and p is a positive integer between 1 and 10, inclusive, what is the probability that x < 0?