Six vitamin and three sugar tablets identical in appearance

Six vitamin and three sugar tablets identical in appearance are in a box. One tablet is taken at random and given to Person A. A tablet is then selected and given to Person B. What is the probability thatPerson A was given a vitamin tablet?Person B was given a sugar tablet given that Person A was given a vitamin tablet?neither was given vitamin tablets?both were given vitamin tablets?exactly one person was given a vitamin tablet?Person A was given a sugar tablet and Person B was given a vitamin tablet?Person A was given a vitamin tablet and Person B was given a sugar tablet?