Question
There are 4 more teachers in School N than in School P. After 25% of the teachers left School N and 50% of teachers left School P, the number of teachers who remained in School N is thrice that of the number of teachers in School P. Find the number of teachers in School N at first.
4 m

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There are 4 more teachers in School N than in School P. After 25% of the teachers left School N and 50% of teachers left School P, the number of teachers who remained in School N is thrice that of the number of teachers in School P. Find the number of teachers in School N at first.