Question

For each 15 mm of coloured fabric Gavyn uses to make his curtains, he also uses 2 cm of white fabric. Express the amount of white fabric to coloured fabric as a ratio in its simplest form.

Answer 1

4:3

Explanation:

We are told that For each 15 mm of coloured fabric Gavyn uses to make his curtains, he also uses 2 cm of white fabric.

Let's convert the 2cm to mm to make it uniform units.

We know that 1 cm = 10mm

Thus, 2cm = 20 mm

Thus,

For each 15 mm of coloured fabric Gavyn uses to make his curtains, he also uses 20 mm of white fabric.

Thus for a ratio of white fabric to coloured fabric, this gives;

20:15

Common factor is 5,so it can be simplified as; 4:3