Light Bulbs

Logic Level 2

There are 2 rooms. Each room contain 3 light bulbs as well as 3 switches that correspond to the light bulbs in the other room. How many times do you need to enter either of the rooms before you can accurately determine which switch corresponds to which light bulb?

Note: Your height is 2 inches (5 centimeters) less than the ceiling's height. This information is useful when solving this problem.

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