Question
There were an equal number of pupils in classes 2P and 2Q. After 9 pupils transferred from Class 2P to Class 2Q, there are now 40 pupils in Class 2Q. How many pupils were there in each class at first?
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There were an equal number of pupils in classes 2P and 2Q. After 9 pupils transferred from Class 2P to Class 2Q, there are now 40 pupils in Class 2Q. How many pupils were there in each class at first?