One-eighth of 9th class was interested in studying at a grammar school, at a business academy one sixth, at secondary vocational schools quarter, to SOU one third and the remaining three students were interested in the school of art direction. How many students are in the classroom?

Correct answer:

n =  24

Step-by-step explanation:

n/8+n/6+n/4+n/3+3 = n

3n = 72

n = 24

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