Question
A stationery shop sold 1 notebook for $7. For every 3 notebooks sold, an additional notebook would be given free. If Mrs Cheong spent $84 on the notebooks, how many notebooks did she receive in total?
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A stationery shop sold 1 notebook for $7. For every 3 notebooks sold, an additional notebook would be given free. If Mrs Cheong spent $84 on the notebooks, how many notebooks did she receive in total?