pls help me i’m confused

Answer:
Step-by-step explanation:
Given,
Amount of coloured fabric used = 3mm
Amount of white fabric used in per 3 mm of coloured fabric = 1 cm = 10 mm
Therefore,
Ratio of amount of white fabric to coloured fabric is
[tex] = \frac{10}{3} [/tex]
= 10:3 (Ans)