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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?

Answers

Bhawna Mehta
Apr 04, 2020
Related 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?
(i) Individuals exposed to chemical C1 but not to chemical C2 = 
Individual exposed to chemical C1 - Individual exposed to both chemicals C1 and C2
= 120-30 = 90

(ii) Individual exposed to chemical C2 but not to chemical C1 = 
individual exposed to chemical C2 - Individuals exposed to chemicals C1 and C2
=50-30 = 20

(iii) Individuals exposed to chemicals C1 or C2 = Individual exposed to C1 + Individual exposed to chemical C2 - Individuals exposed to both C1 and C2
=120+50-30 = 140

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This question for Class 10 2022 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about this question covers all topics & solutions for Class 10 2022 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for 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?.
(i) Individuals exposed to chemical C1 but not to chemical C2 =Individual exposed to chemical C1 - Individual exposed to both chemicals C1 and C2= 120-30 = 90(ii) Individual exposed to chemical C2 but not to chemical C1 =individual exposed to chemical C2 - Individuals exposed to chemicals C1 and C2=50-30 = 20(iii) Individuals exposed to chemicals C1 or C2 = Individual exposed to C1 + Individual exposed to chemical C2 - Individuals exposed to both C1 and C2=120+50-30 = 140