4+5 times 6/2

Answer 1

(4 + 5) * (6/2) = 27

4 + (5 * 6/2) = 19

[(4 + 5) * 6] / 2 = 26

Answer 2

and finally,

[(4+(5*6)]/2 = 17

Answer 3

also
[(4 + 5) * 6] / 2 = 27
oops
(a) and (c) are the same