CAIE IGCSE Mathematics Core C1.12.2 Apply Other Measures of Rate Questions

Practise calculating density, mass or volume and applying population density after converting all measurements to compatible units.

Exam points

use density = mass ÷ volume and rearrange it to find a missing mass or volume
calculate the solid's volume from its geometry before applying the density relationship
find population density as population divided by area and state people per square kilometre

[Maximum number: 3]

A bar of gold in the shape of a cuboid has dimensions 2 cm by 4 cm by 6.5 cm .
The density of gold is $19.32 \mathrm{~g} / \mathrm{cm}^{3}$ .
Calculate the mass of this bar of gold.
$\left[\right.$ Density $\left.=\frac{\text { mass }}{\text { volume }}\right]$

1004.64

M1 for $2 \times 4 \times 6.5$ oe implied by 52
M1 for $19.32=\frac{[\text { mass }]}{\text { their } 52}$ or better

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CAIE IGCSE Mathematics Core C1.12.2 Apply Other Measures of Rate Questions question 1