**Paper 1 Higher - Sample Assessment Q18**

18) Solid

The ratio of the surface area of solid

The volume of solid

Show that the volume of solid A is 120cm

(3 marks)

**A**and solid**B**are mathematically similar.The ratio of the surface area of solid

**A**to the surface area of solid**B**is 4:9The volume of solid

**B**is 405cm^{3}.Show that the volume of solid A is 120cm

^{3}.(3 marks)