John has a large water collection tank. The tank can hold 200 gallons. It weighs 80 pounds empty. A rainstorm fills it to 80% of capacity. If a gallon of water weighs 8 pounds, how much does it weigh now? Let's think first. Chain of thought:
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The tank has 200 * .8 = 160 gallons of water in it. That water weighs 160 * 8 = 1280 pounds. So in total it weighs 1280 + 80 = 1360 pounds.
Therefore, the answer is 1360.
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