Mathematics, 14.04.2021 17:10, Nason156

ln a certain clusters of school of 600 student the student can visit helu, park, both helu, park and neither. just as many visit both as many visit both as many visit neither. one quarter of those who visit park also visit helu. the total number who visit helu is 30 fewer than who visit park only. find how many visit helu only.

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ln a certain clusters of school of 600 student the student can visit helu, park, both helu, park and...