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  • The number of students who take both the subjects Mathematics and Chemistry is 30. This represents 10% of the enrollment in Mathematics and 12% of the enrollment in Chemistry. The number of students take at least one of these two subjects, is (1) 250 (2)

The number of students who take both the subjects Mathematics and Chemistry is 30. This represents 10% of the enrollment in Mathematics and 12% of the enrollment in Chemistry. The number of students take at least one of these two subjects, is (1) 250 (2) 490 (3) 560 (4) 540

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eginarrayl extGiven the number of students took mathematics and chemistry both are=30\ extFurther, extLet number of students enrolled in mathematics are x, extin chemistry are y.\ extGiven, 10\% extof x= extnumber of students took mathematics and chemistry both=30\ x=frac3010\%=300\ extSimilarily, 12\% extof y=30\ y=250\ extAs per asked in the question, the number of students take at least one of these two subjects\ extwill be equal to the lowest of x extand y.\ extSo answer is 250.endarray

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Deependra Verma

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