In study of Unity university. The following data were collected. There were 30 students taking mathematics, 28 students psychology and 43 taking English. 14 students were taking mathematics and psychology, 15 students were taking mathematics and English and 19 students were taking psychology and English, 6 students were taking all the three subjects.

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  1. How many students were taking psychology only?

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  2. Your Question?

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  3. Since, it doesn't state that the 14 or 19 or 6 students are studying psychology out of the 28 psychology students, we could assume that each group is separated from each other, therefore I think the amount of students that are taking psychology only is 28. (I'm not sure if 28 is the answer, I'm assuming it is.)

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