The city sites tour company had the same ratio of tourist to guys on both days this weekend on Saturday they were 120 tourist and 18 guides on Sunday there were 40 tourist how many guys were there on Sunday?

To solve this problem, we can set up a proportion:

(120 tourists/18 guides) = (40 tourists/x guides)

Cross multiplying, we have:

120x = 40 * 18
120x = 720

Dividing both sides by 120, we find:

x = 720/120
x = 6

Therefore, there were 6 guides on Sunday.