Six vitamin and three sugar tablets identical in appearance are in a

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 that

e. exactly one person was given a vitamin tablet?

f. Person A was given a sugar tablet and Person B was given a vitamin tablet?

g. Person A was given a vitamin tablet and Person B was given a sugar tablet?

 

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