Answer:
1 square yards more tiles are needed to complete the job.
Explanation:
We have been given that the new new room is 12 feet by 15 feet 6 inches. A supplier delivered 20 square yards of carpet tiles.
First of all, we will convert our given dimension into feet.
1 feet = 12 inches

Now, we will find the carpet area by multiplying the given dimensions.


Now, we will convert our area into square yards by multiplying our answer by 0.11111.



Therefore, we don't have enough tiles to do the job and we need 1 square yards of more tiles to do the job.