Download PDF for future reference Install our android app for easier access Click the button below to download the full **Mathematics Form 1 Topical Revision Questions and Answers** pdf document, with all the topics.

Download Mathematics Form 1 Topical Revision Questions and Answers PDF to Print or Offline Reading

**Questions**

- A piece of metal has a volume of 20 cm
^{3 }and a mass of 300g. Calculate the density of the metal in kg/m^{3}. - 2.5 litres of water density 1g/cm
^{3 }is added to 8 litres of alcohol density 0.8g/cm^{3}. Calculate the density of the mixture

**Answers**

- Density =
^{(300 x 1,000,000)}/_{(20 x 1000)}

=15,000 kg/m^{3} - D =
^{M}/_{V}

Mas = D x V

= 1g/cm^{3} x 2500cm^{3}

= 2500g..........................................(i)

Mass = 0.8 x 8000

= 6400g .....................................(ii)

total mass = (2500 + 6400)g

= 8900g

Density of mixture = 8900g/cm^{3}/_{10500}