Question
A stationery kiosk sold 1 notebook for $9. For every 4 notebooks sold, an additional notebook would be given free. If Mrs Tang spent $108 on the notebooks, how many notebooks did she receive in total?
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A stationery kiosk sold 1 notebook for $9. For every 4 notebooks sold, an additional notebook would be given free. If Mrs Tang spent $108 on the notebooks, how many notebooks did she receive in total?