Respuesta :
Answer: First option is correct.
Step-by-step explanation:
Since we have given that
Number of rooms = 17.5
Time taken to clean = 8.75 hours
We need to find the number of rooms he clean per hour.
So, the number of rooms per hour is given by
[tex]\dfrac{17.5}{8.75}\\\\=2[/tex]
Hence, there are 2 rooms that he clean per hour.
Therefore, First option is correct.