Answer:
length of room on blueprint will be = 2 inch.
Explanation:
The scale used on a blueprint is
1/4 inch = 3 feet
Then we have to calculate the length of a room on scale with an actual length of 24 feet.
To solve these questions of conversion from one unit to other we should always use unitary method.
∵ 3 feet actual length represents the length on scale = 1/4 inch.
∴ 1 feet actual length will be represented on scale = (1/4)/3 = 1/12 inch.
∴ 24 feet actual length will be measured on scale = (1/12)×24 = 2 inch.
Therefore answer is 2 inch.