he number of students who take both the subjects mathematics and chemistry is 30

Question

The number of students who take both the subjects mathematics and chemistry is 30. This represents 10% of the enrolment in mathematics and 12% of the enrollment in Chemistry. How many students take atleast one of these two subjects?

Answer 1

| M and C | = 30

|M| = 30*100/10 = 300

|C| = 30*100/12 = 250

students take at least  one of these  =  students taking M + students taking C - students taking both

= 300+250-30 = 520

Comments

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