Answer:
1:12
Explanation:
Give the following :
Lin's scale = 1 inch to 1 foot
Brother's scale = 1 inch to 1 yard
Lin's scale for the drawing without units :
To obtain this, convert foot to inch:
1 foot = 12 inches
Hence,
1 inch is equivalent to 12 inches
Hence, rewriting Lin's scale without units :
1:12