This is a pond in the shape of a prism. It is completely full of water. Colin uses a pump to empty the pond. The level goes down by 20 cm in the first 30 minutes. Work out how many minutes Colin has to wait for the pond to completely empty.

Question
This is a pond in the shape of a prism. It is completely full of water. Colin uses a pump to empty the pond. The level goes down by 20 cm in the first 30 minutes. Work out how many minutes Colin has to wait for the pond to completely empty.
Answer:
This is a pond in the shape of a prism. It is completely full of water. Colin uses a pump to empty the pond. The level goes down by 20 cm in the first 30 minutes. Work out how many minutes Colin has to wait for the pond to completely empty. 65047d63622c2.webp
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algebra 11 months ago 5707