There are 200 individuals with a skin disorder, 120 had been exposed to the chemical C1, 50 to chemical C2, and 30 to both the chemicals C1 and C2. Find the number of individuals exposed to:(i) Chemical C1 but not Chemical C2(ii) Chemical C2 but not Chemical C1(iii) Chemical C1 or Chemical C2

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

1.	There are 200 individuals with a skin disorder, 120 had been exposed to the chemical C1, 50 to chemical C2, and 30 to both the chemicals C1 and C2. Find the number of individuals exposed to:(i) Chemical C1 but not Chemical C2(ii) Chemical C2 but not Chemical C1(iii) Chemical C1 or Chemical C2
Answer» 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 $C_{2}$ $(i i)$ Chemical $C_{2}$ but not Chemical $C_{1}$ $(i i i)$ Chemical $C_{1}$ or Chemical $C_{2}$