Question: 17. A solid pyramid has a rectangular base of sides 15 cm by 10 cm and a height of 20 cm. It is placed inside

17. A solid pyramid has a rectangular base of sides 15 cm by 10 cm and a height of 20 cm. It is placed inside an open cubical tank of sides 30 cm. 'The tank is then completely filled with water. If the pyramid is removed, what will be the depth of the remaining water in the tank?

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