# Thread: Number of students in Class

1. ## Number of students in Class

Delete please . . . .

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The teacher has told the principle that there is :

Half of the students listen to the lesson
1/4 (quarter) of the students looks like they are listining to the lesson
1/7 of the students likes to talk when I'm giving the lesson.
The three left students are sleeping while I'm giving the question.

$x\left(\frac{1}{2}+\frac{1}{4}+\frac{1}{7}\right)+ 3=x$