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There are 200 individuals with in skin d...

There are 200 individuals with in 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 :
Chemical `C_(2)` but not chemical `C_(1)`

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There are 200 individuals with in 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 : Chemical C_(1) but not chemical C_(2)

There are 200 individuals with in 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 : Chemical C_(1) or chemical C_(2) .

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