A class of 45 students took examination in Science and Math.If 35 passed Science, 15 passed Math and 6 failed both subject 1.how many students passed both subject? A.6. B.15. C.35. D.44 2.how many students passed science only? A.15. B.35. C.50. D.60 3.how many students passed science only? A.6. B.9. C.12. D.15
