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 1098518: 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 ikleyn(52781) (Show Source): You can put this solution on YOUR website!
.

Let H be the new level ow water.


Then you have this equation


 = 4*5*6    ====>


20H = 120 + 27 = 147  ====>  H = 147/20 = 7.35 m.

Solved.

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For many other solved similar problems of this type see the lesson
- Water level rise in a tank after submerging bodies
in this site.

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