We know that
scale------------> 1 in/4 ft
[blueprint]=scale*[actual]
Part 1) <span> Living room  
lenght (20 ft)  -------------> </span>[blueprint]=(1/4)*20=5 in<span>
width (8 ft) ----------------> </span>[blueprint]=(1/4)*8=2 in
Part 2) Kitchen   
length (16 ft)  -------------> [blueprint]=(1/4)*16=4 in
width (16 ft) ----------------> [blueprint]=(1/4)*16=4 in
Part 3) Office   
length (8 ft)  -------------> [blueprint]=(1/4)*8=2 in
width (16 ft) ----------------> [blueprint]=(1/4)*16=4 in
Part 4) Bedroom 1   
length (8 ft)  -------------> [blueprint]=(1/4)*8=2 in
width (16 ft) ----------------> [blueprint]=(1/4)*16=4 in
Part 5) Bedroom 2   
length (20 ft)  -------------> [blueprint]=(1/4)*20=5 in
width (20 ft) ----------------> [blueprint]=(1/4)*20=5 in
Part 6) <span>Bathroom</span>   
length (6 ft)  -------------> [blueprint]=(1/4)*6=1.5 in
width (8 ft) ----------------> [blueprint]=(1/4)*8=2 in
see the attached figure to view the table