SOLUTION: 200 tonnes of oil were bought at one port for 60 per ton and 600 tonnes of oil were bought from another port for 70 per ton. what is the average cost of oil per ton?

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Question 993982: 200 tonnes of oil were bought at one port for 60 per ton and 600 tonnes of oil were bought from another port for 70 per ton. what is the average cost of oil per ton?
Answer by ikleyn(52777) About Me  (Show Source):
You can put this solution on YOUR website!
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In total, the full cost for (200 tonnes + 600 tonnes) is

60*200 + 70*600 = 54000 units.

Hence, the average cost (price) per one ton is

54000%2F%28200%2B600%29 = 54000%2F800 = 67.5 units.