Question
There are 48 more teachers in School P than in School Q. After 20% of the teachers left School P and 50% of teachers left School Q, the number of teachers who remained in School P is four times that of the number of teachers in School Q. Find the number of teachers in School P at first.
4 m

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There are 48 more teachers in School P than in School Q. After 20% of the teachers left School P and 50% of teachers left School Q, the number of teachers who remained in School P is four times that of the number of teachers in School Q. Find the number of teachers in School P at first.