Question
There were an equal number of pupils in classes 3Q and 3R. After 9 pupils transferred from Class 3Q to Class 3R, there are now 39 pupils in Class 3R. How many pupils were there in each class at first?
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There were an equal number of pupils in classes 3Q and 3R. After 9 pupils transferred from Class 3Q to Class 3R, there are now 39 pupils in Class 3R. How many pupils were there in each class at first?