S. No.

Organism

Zone size for ampicillin

Zone size for sample

+ ampicillin

Zone size for gentamicin

Zone for sample + gentamicin

P1

P2

Mean

P1

P2

Mean

P1

P2

Mean

P1

P2

Mean

1.

S. aureus

42

46

44

22

20

21

28

30

29

20

18

19

2.

P. aeruginosa

RE

RE

RE

19

23

21

18

20

19

20

16

18