Question

There are 200 individuals with a skin disorder, 120 had been exposed to the

chemical C1, 50 to chemical C2 and 30 to both chemical. Find the number of

individuals exposed. (i) Chemical C1 but not C2 (ii) Chemical C2 but not C1

(iii) Chemical C1 and C2​

Answer 1

Step-by-step explanation:

There are 200 individuals with a skin disorder, 120 had been exposed to the

chemical C1, 50 to chemical C2 and 30 to both chemical. Find the number of

individuals exposed. (i) Chemical C1 but not C2 (ii) Chemical C2 but not C1

(iii) Chemical C1 and C2