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

Algebra ->  Surface-area -> 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      Log On

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.