Question: Can you walk me through the solution of: A company decided to take its employees on a tour to explore an ancient site. The employees were divided into 3 groups of 200 employees. Each group was assigned 7 tour guides. How many is the total number of people going on this tour?
Answer: 
The number of employees is 3 groups * 200 employees/group = 600 employees.
The number of tour guides is 3 groups * 7 guides/group = 21 guides.
The total number of people going on this tour is 600 employees + 21 guides = 621 people.