Tours of the art museum are offered everyday 1/3 hour starting at 10 am. The museum closes at 4 pm. How many tours are offered each day?

There are 18 tours offered each day.

Step-by-step explanation:

There are a few ways to solve this problem. Since tours are offered every 1/3 hour, we can take the amount of minutes in an hour (60) and divide by 3: 60 : 3 = 20minutes. So, every 20 minutes there is a tour. Since the tours are offered every 20 minutes, or three times every hour, we can take the total time the museum is open and multiply this number by 3. The amount of hours from 10am - 4pm is 6 hours. 6 hours x 3 tours/hour = 18 total tours offered each day.