Eighty percent of the lights at Hotel California are switched on at 8 p.m. one evening. However, forty percent of the lights that are supposed to be switched off are actually switched on, and ten percent of the lights that are supposed to be switched on are actually switched off. What percent of the lights that are switched on are supposed to be switched off?
22(2/9)%
16(2/3)%
11(1/9)%
10%
5%


OA D
I fully understand the correct answer.. but in the process of finding the answer I spent two minutes to decide about the form o DOUBLE MATRIX here

What are the clues to correctly decide the DOUBLE MATRIX here ?


Supposed ON Supposed OFF
Actual ON
Actual OFF

Actual ON Supposed OFF
Supposed ON
Actual ON