dyee630k wrote:
28. (Book Question: 141)In a certain medical survey, 45 percent of the people surveyed had the type A antigen in their blood and 3 percent had both the type A antigen and the type B antigen. Which of the following is closest to the percent of those with the type A antigen who also had the type B antigen?
A. 1.35%
B. 6.67%
C.13.50%
D.15.00%
E.42.00%
It seems to be easy but I can't wrap my head around it..
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