The 3 Light Switches Puzzle
- Francis
- Apr 27
- 1 min read
Look at the picture and answer the question.
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The winner of the quiz is Sanashree.
1. Let the switches be A,B and C.
2. On the switch A.
3. Stand in the enterence of the room without entering.
4. You can observe one light glowing.
5. This connects the switch A.
6. Now turn off the switch A and on the switch B.
7. Now enter the room of bulbs.
8. You can observe one light glowing.
9. It connects the switch B.
10. And the left over bulb which is not glowing is bulb C.
Let the bulbs be X, Y, and Z
Turn on switch X for 5 to 10 minutes. Turn it off and turn on switch Y. Open the door and touch the light bulb.
1. the light is on from the bulb, it is Y
Now we will check the other two off bulbs
2. the bulb which is hot, is X
3. the bulb which is cold, is Z