1.

There are 200 individuals with a skin disorder, 120 had been exposed to the chemical C_(1), 50 to chemical C_(2), and 30 to both the chemicals C_(1) and C_(2). Find the number of individuals exposed to (i) Chemical C_(1) but not chemical C_(2) (ii) Chemical C_(2) but not chemical C_(1) (iii) Chemical C_(1) or chemical C_(2)

Answer»


ANSWER :90, 20, 140


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