Question

suppose there are 3 switches.One of them is connected to a bulb in a room.
Now you have only one chance to enter the room to check that which switch is connected to the bulb. Now tell me how can you select the correct switch?​

Answer 1

Answer:

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. if the light is on, it is Y

2. if the light is off and hot, it is X

3. if the light is off and cold, it is Z

Answer 2

ok follo.w me

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