Two$-$types of student come to the career$-$services office for counseling. New students arrive at a rate of $11$

students per hour and spend $6$ minutes in registration and $10$ minutes with an advisor. Returning students

arrive at a rate of $15$ students per hour and spend $4$ minutes in registration and $5$ minutes with an advisor.

The staff consists of $2$ registration employees and $2$ advisors.

Instruction: Round your answer to one decimal place.

How many returning students will be served each hour?

returning students per hour