PISA 2012 Released
Items
Question 3: REVOLVING DOOR
PM995Q03
The door makes 4 complete rotations in a minute. There is room for a maximum of
two people in each of the three door sectors.
What is the maximum number of people that can enter the building through
the door
in 30 minutes?
A. 60
B. 180
C. 240
D. 720