Math, asked by manjula020707, 1 year ago

The number of students who take both the subjects Mathematics and Chemistry is 70. This represents 10% of the enrollment in Mathematics and 14% of the enrollment in Chemistry. The number of students take at least one of these two subjects, is (1) 1120 (2) 1130 (3) 1100 (4) insufficient data

Answers

Answered by MadhavanThothadri
35
The answer is 1130...
Answered by vaduz
25

Answer:1130 students


Step-by-step explanation:

as given math and chemistry n(A∩B) =70

so enrollment in maths n(A)= 700

and enrollment in chemistry n(B) = 500

as we know

n(A\bigcup B)=n(A) + n(B) - n(A\bigcap B)\\\\= 700+500-70\\\\=1130

so at least 1130 students take one of these two subjects.

hence option 2 is correct.

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