1.1. A student has a pile of A4 paper for his computer printer.

Fig. 1.1 shows the dimensions of the pile of paper.

The pile contains 500 sheets of paper.

Calculate the average thickness of one sheet of paper.

average thickness = .................................................... cm 

1.2. Show that the pile of paper has a volume of 3000 cm³. Use the information shown in Fig.1.1.

1.3. The student measures the total mass of the paper in the pile.

State the name of a device used to measure mass.

1.4. The mass of the paper in the pile is 2400 g.

Calculate the density of the paper.

density = .............................................. g/cm³