Question

37. A diagram of a large ground drawn to the scale of 0.5 inch equals 80 feet. If the length of the diagram is 4.5 inches the actual length of the ground is a) 720fi b) 680ft c) 640ft d) 36001​

Answer 1

Answer:

4.5 inch on the diagram will represent 720 ft on the actual ground.

Step-by-step explanation:

The scale is 0.5 inch = 80 feet

It means that 0.5 inch on diagram represents 80 feet on actual ground.

We need to find the actual length of the ground whose length on the map is 0.5 inch

We use unitary method for this question.

As 0.5 inch = 80 feet

Therefore 1 inch = 80/0.5 feet

                           = 160 feet

Therefore 4.5 inch = 160*4.5 feet

                               = 720 feet

Therefore, 4.5 inch on the diagram will represent 720 ft on the actual ground.

Therefore, the correct answer is option(a) 720 ft