SOLUTION: A rectangular cistern with base 4 m by 5 m has water to a depth of 6 m in it. A solid metal cube with sides 3 m is placed into the water. To what level, in m, does this raise the w

Question 1147338: A rectangular cistern with base 4 m by 5 m has water to a depth of 6 m in it. A solid metal cube with sides 3 m is placed into the water. To what level, in m, does this raise the water in the cistern?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
A rectangular cistern with base 4 m by 5 m has water to a depth of 6 m in it. A solid metal cube with sides 3 m is placed into the water. To what level, in m, does this raise the water in the cistern?
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The volume of water at the start is 4*5*6 = 120 cubic meters.
The cube adds 27 cubic meters.
---> 120 + 27 = 147 cm
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L = 147/(4*5) = 7.35 meters

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