A rectangular grassland is 16 meters long and 8 meters wide, with a stone road in the middle. If it costs 40 yuan to pave a 1 square meter grassland, how much does it cost to pave this land The back is the floor. How much is it?

16 × 8-16 × 2 = 96 square meters
Cost: 96 × 40 = 3840 yuan

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