If the time for guestroom cleaning during a shift is 6 hours and 40 minutes and each room attendant cleans 16 rooms, how many minutes does each attendant have per room?

To determine how many minutes each room attendant has per room, first convert the total cleaning time from hours and minutes into just minutes.

The time for guestroom cleaning is 6 hours and 40 minutes. Since there are 60 minutes in an hour, we can convert the hours into minutes:

6 hours = 6 * 60 = 360 minutes

Now, add the 40 minutes to this total:

360 minutes + 40 minutes = 400 minutes

Next, divide this total time by the number of rooms each attendant cleans, which is 16 rooms:

400 minutes ÷ 16 rooms = 25 minutes per room

Therefore, each room attendant has 25 minutes allocated for cleaning each room. This choice correctly reflects the calculation based on the given cleaning time and the number of rooms each attendant is responsible for during their shift.