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?
------------
The volume of water at the start is 4*5*6 = 120 cubic meters.
The cube adds 27 cubic meters.
---> 120 + 27 = 147 cm
---------------
L = 147/(4*5) = 7.35 meters