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Mathematics, 13.02.2020 05:08 heyyyyy39

Eight blood types are shown by the eight regions of the Venn diagram shown here. Each circle represents one of three antigens: A, B or Rh. If A and B are both absent, the blood type is O. If Rh is present, the blood type is positive; otherwise, it is negative. The following table represents the blood types of 150 people. How many people have blood type O+?

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