From a previously answered question by you on May 14th; "The city of Clearview has decided to review how it handles the flow of tourists at Tourist Tower, the city's most popular attraction..."
level 1= (1.0*30)*[60/(15+10)] people
level 2= (0.7*30)*[60/(20+10)] people
In above two solution lines, what is 1.0 and 0.7?
And Minutes required between elevator trips =(20-15)*3 = 15min
In above solution line, what is "*3"?