Question
One guide book costs $12 at a shop. During a sale, for every 4 guide books bought, the 5th guide book can be bought at a discount of 25% off the original price. How many guide books does Asher buy if he pays $297 altogether?
4 m

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One guide book costs $12 at a shop. During a sale, for every 4 guide books bought, the 5th guide book can be bought at a discount of 25% off the original price. How many guide books does Asher buy if he pays $297 altogether?