English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

Imagine 2 rooms, 1 with 3 switches & the other with 3 light bulbs. Each switch controls 1 of the light bulbs. However, b/c the light bulbs are in a different room, you can't see immediatly which switch controls which light bulb.
Your task is to figure out which switch controls which light bulb. You can spend as much time as you like in the room with the light switches, but eventually you must go into the room with the light bulbs. Once you enter the room with the light bulbs, you can't return to the other room with the light switches. After entering the room with the light bulbs, you have only 30 seconds to figure out which switch controls which light bulb.
How do you do it?

2007-09-26 13:10:40 · 2 answers · asked by **Tiff_Tess** 1 in Science & Mathematics Physics

2 answers

Turn on two switches.

Sing your favorite song.

Turn off one switch.

Go in the room.

One light is on, one light is off, but hot, one light is off and cold.

2007-09-26 13:14:57 · answer #1 · answered by supastremph 6 · 0 0

Alternate the switches and then look for the warmth of the bulbs.

2007-09-26 13:14:36 · answer #2 · answered by Anonymous · 0 0

fedest.com, questions and answers