There should be 480 visitors (including children)
This would be because 60% of the people have 180 children so divide by 6 and you have 30 or 10%, multiply the 30 by 10 (to get a hundred percent [300] ) and add the children to get 480.
There are 288 visitors in total (including kids) because you need to turn the percent into a decimal which is .60 so then you multiply 180 times .60 and you get 108 and then you add 108 by 180 and you get 288
