The length of the house on the plan is 25 cm, and the width is 15 cm.

The length of the house on the plan is 25 cm, and the width is 15 cm. What is the length and width of this house, if the plan is made in a 1: 300 mastaba?

What is scale. Scale is a reduction of any image according to the proportion. In our example, this is 1: 300. That is, 1 cm on the plan is equal to 300 cm of the fact of the house.
The width of the house on the plan is 15 cm, which means
15 * 300 = 4500 cm
Can be converted into meters 1 meter is equal to 100 cm.
4500 cm = 45 m (house width).
The length of the house on the plan is 25 cm, which means
25 * 300 = 7500 cm = 75 m (house length).
Answer: the length of the house is 75 m and the width is 45 m.