100 people who were surveyed and asked the question: ``Is fuchsia kinda pink, or purply?'' Of them, 60 believe that fuchsia is ``kinda pink'' and 27 believe it is both ``kinda pink,'' and also ``purply.''  Another 17 think that fuchsia is neither ``kinda pink'' nor ``purply.''

How many of those 100 people believe that fuchsia is ``purply''?
I want to find the number of people who believe that fuchsia is ``purply,'' so I'll call that x. I can use the information given in the problem to set up a Venn diagram with two circles: one for ``kinda pink'' and one for ``purply.'' The region where the two circles overlap is the number of people who think fuchsia is both ``kinda pink'' and ``purply,'' which is 27. The region where only the ``kinda pink'' circle is shaded is the number of people who think fuchsia is only ``kinda pink'' and not ``purply.'' That is 60 - 27 = 33. The region where only the ``purply'' circle is shaded is the number of people who think fuchsia is only ``purply'' and not ``kinda pink.'' That is x - 27. The region outside both circles is the number of people who think fuchsia is neither ``kinda pink'' nor ``purply,'' which is 17. Since the total number of people surveyed is 100, I can add up all these regions and set them equal to 100: 33 + 27 + (x - 27) + 17 = 100. Simplifying this equation, I get x + 50 = 100, so x = 50. Therefore, 50 people believe that fuchsia is ``purply.'' 