a+2b=6,ab=4
2/a + 1/b=?	Choose the most appropriate option.
A) 3 / 2
B) 5 / 2
C) 7 / 2
D) 9 / 2
E) 11 / 2

Rationale: 2 / 2 + 1 / 2 = 1 + 1 / 2 = 3 / 2 answer : a
Answer: A