Question
One novel costs $20 at a shop. During a sale, for every 3 novels bought, the 4th novel can be bought at a discount of 15% off the original price. How many novels does Vaidev buy if he pays $445 altogether?
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One novel costs $20 at a shop. During a sale, for every 3 novels bought, the 4th novel can be bought at a discount of 15% off the original price. How many novels does Vaidev buy if he pays $445 altogether?