Question
Tank D and Tank E have a total amount of 585 mℓ of water. For Tank E and Tank F, the total amount of water is 1062 mℓ. The amount of water in Tank D is 25 the amount of water in Tank F. What is the average amount of water in the 3 tanks?
3 m

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Tank D and Tank E have a total amount of 585 mℓ of water. For Tank E and Tank F, the total amount of water is 1062 mℓ. The amount of water in Tank D is 25 the amount of water in Tank F. What is the average amount of water in the 3 tanks?