Question

of 100 students in university department​ 45 are enrolled in English 30 in history 20 in geography 10 in at least two of three courses and just i student enrolled in all three courses
a) How many students are take​ at least one​ of these courses?
b) How many students take none of these courses?
c) How many students take exactly one course?​

Answer 1

Answer:

25%

25%

50%

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