Castle Museum
A large number of medieval cannons made of cannon were found in the Castle Museum (cannon is an alloy of tin and copper in a ratio of 1: 9). The councilors agreed that they did not need cannons, but a new bell would be thrown at the town tower. The bells are made of bells, which is also an alloy of tin and copper, but in a ratio of 1: 4. Calculate how much cannon and how much tin will be needed to produce a 500 kg bell made of bells.
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