Mathematics · Higher TierHigher Tier · Calculator practice · 8300
Torus Maths original · AQA style1
Two geometrically similar solid ornaments A and B have surface areas in the ratio A:B=9:25. A has volume 108 cm³. Its metal has density 2.4 g/cm³. B is made from a different metal of density 1.8 g/cm³.
(a)
Find the mass of B.
[4 marks]
(b)
Find the ratio of the masses A:B in its simplest integer form.
[3 marks]