Question
There are 3 more teachers in School H than in School J. After 20% of the teachers left School H and 50% of teachers left School J, the number of teachers who remained in School H is four times that of the number of teachers in School J. Find the number of teachers in School H at first.
4 m

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There are 3 more teachers in School H than in School J. After 20% of the teachers left School H and 50% of teachers left School J, the number of teachers who remained in School H is four times that of the number of teachers in School J. Find the number of teachers in School H at first.