Hi muhana,
your post is a little difficult to understand.

Do you see 5 patients in each 40min session? Or do you see 5 patients a day for 40 minutes each?
Which currency is you $?

In NZ, a full-ime job = 8 hours/ 5 days (Monday - Friday).
For most hospitals, an additional weekend day (Saturday or Sunday) is compulsory.
We get 4 weeks annual leave.

In private practice = outpatients, sessions can be anywhere from 15 minutes to 30 minutes long, occasionally, 45 minutes are allowed. This gives you anything between 15 - 25 patients.
On a rehab ward, sessions are often generally 45 minutes long = 5 - 6 patients.
Inpatient wards are variable, it depends on what the patient needs (sometimes the documentation takes longer than the actual treatment ), but commonly, around 8 - 10 patients are seen. On top of this are team and ward meetings and time for in-service training etc.
In the Community setting, you usually see 4 -5 patients in an 8 hour day.

Hope, this explains the situation here a little better.

Regards,
Fyzzio