A bookseller sells only three books – A, B and C – on Sundays and their Selling Price are in the ratio 4 : 5 : 6 respectively. The bookseller makes 10%, 20% and 30% profit on selling A, B and C respectively. If the bookseller made an overall profit of 20% on a Sunday when he sold at least one copy of each of the three books, then which of the following statements is definitely true regarding that day?
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