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EMPOWERgmat
During the past week, a local medical clinic tested N individuals for two infections. If 1/3 of those tested had infection A and, of those with infection A, 1/5 also had infection B, how many individuals did not have both infection A and B?
A. N/15
B. 4N/15
C. 14N/15
D. N/5
E. 4N/5
OA C
During the past week, a local medical clinic tested N individuals for two infections. If 1/3 of those tested had infection A and, of those with infection A, 1/5 also had infection B, how many individuals did not have both infection A and B?
A. N/15
B. 4N/15
C. 14N/15
D. N/5
E. 4N/5
OA C
