Mathematics, 12.06.2021 14:00 sighgabbie
In a survey of students , every student studies at least one of the three subjects Maths English and Science . The number of students who study only one subject is twice the number of students who study only two students . If 20 students study all three and 80 students who study only two subjects, find the total number of students in the survey.
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In a survey of students , every student studies at least one of the three subjects Maths English and...
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