Question

The measured width of the office is 30mm. If the scale of 1:800 is used, calculate the actual width of the building in metres

Answer 1

To calculate the actual width of the building in meters, given the measured width of 30mm and a scale of 1:800, we can use the concept of proportions.

Since 1 unit on the scale represents 800 units in reality, we can set up the following proportion:

1 unit on the scale / 800 units in reality = 30mm / x meters

To solve for x (the actual width of the building in meters), we can cross-multiply and solve for x:

1 * x = 800 * 30mm

x = (800 * 30mm) / 1

Now, let's convert the width from millimeters to meters:

x = (800 * 30) / 1000

x = 24 meters

Therefore, the actual width of the building is 24 meters.

Explanation: