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Mathematics, 13.10.2020 20:01 Mrcastaway3036

2) Eighty students were surveyed as they left the cafeteria after lunch. The following were the results: 50 students had pizza, 40 students had soda, 21 students had pizza and soda,
17 students had pizza and a cookie, 18 students had soda and a cookie, and 10 students had
all three. How many students had a cookie only?

PLS HELP I HAVE BEEN TRYING TO DO THIS FOR AN HOUR. SOLVE USING A VENN DIAGRAM(GEOMETRY)

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