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1.A cube has an edge measuring 8cm. Find the number of cubes of edges 2cm that can be cut of from it.

2.The area of the floor of a room is 67.5 sq m. Its volume is 270 m3 . Find the height of the room.

3.How many cubic blocks of wood of side 20 cm can be cut from a block of wood having dimensions of 2 m x 80 cm x 40 cm.

4. If the length of each edge of a cube is doubled how many times does its volume became? How many times does its surface area became?

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