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A certain store sells all maps at one price and all books at another price. On Monday the store sold 12 maps and 10 books for a total of...
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Solution

Let the selling price of map and a book be ‘m’ and ‘b’ respectively.12m + 10b = 38simplifying we get6m + 5b = 19 ——–(1)20m + 15b =...

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