Answer:
5 inches
Step-by-step explanation:
Since 2in represents every three feet on the drawing we can first double what we have. So for 6ft it is represented by 4 inches. We can then divide the 3ft by 2 find how many feet are represented by one inch. That comes out to 1.5ft per inch. Since we already have the number of inches solved for 6ft, we just add one more inch to make it 7.5 ft represented on the drawing.
3ft*2 = 6ft
2in*2= 4ft
3ft/2in= 1.5 ft per inch
6ft+1.5ft= 7.5ft
4in+1in = 5 inches