As, the area of the floor = length x breadth
= 16 x 13.5
= 216 m2
And, the width of the carpet = 75 m
So, the length of the carpet required = Area of the floor/Width of the carpet
= 216/75
= 2.88 m
Now, the cost of the carpet required = 2.88 x 60 = 172.80
Hence, the cost of covering the floor with carpet is 172.80.
Disclaimer: The answer given in the textbook is incorrect. The same has been rectified above.