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The total market value of all the gold in the world is 2.7×1013 US dollars.
Given that a kilogram of gold costs $110000, calculate the mass of all the gold in the world.
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Olympic swimming pools have dimensions 50m by 25m by 2m. It is given that 1cm3 of gold weighs 19g.
Find the number of olympic swimming pools needed to store all the world's gold.
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