If 'a' and 'b' are non-zero numbers such that their sum is five times the product, what is the value of 1/a + 1/b?  Choose the most appropriate option.
A) 4 B) 5 C) 6 D) 10 E) 15
a+b = 5ab   1/a + 1/b = (b + a)/(ab) = 5.   The answer is 5.
<result>B</result>
If 'a' and 'b' are non-zero numbers such that their sum is five times the product, what is the value of 1/a + 1/b?