For this case, the first thing you should do is find the area of the room. We can assume that the room is a rectangle, then the area will be:
A = (w) * (l)
Where,
w: width
l: long
Substituting the values we have:
A = (16) * (20)
A = 320 feet ^ 2
We note that each carpet covers only 4 feet ^ 2.
Therefore the number of carpets will be:
N = (320) / (4)
N = 80
Answer:
andy will need to buy 20 carpet squares to cover the room
