Probability:mathematics

The human blood type is determined by the presence (or absence) of three antigens/ antibodies: A, B and Rh. The following Venn diagram shows the percentage of people with the different antigens/antibodies or combinations thereof in their blood: 10x 20x The blood types are classified as follows: Blood contains A only A+ Blood contains A and Rh Blood contains B only Blood contains B and Rh AB- Blood contains A and B, but not Rh AB+ Blood contains A, B and Rh Blood contains Rh only Blood doesn't contain A, B or Rh Calculate the value of x. Determine the percentage of people of each blood type