Question

answer this if you think you are smart enough

Answer 1

Answer:

Switch on two of the switches at once and go to the upper floor.

Step-by-step explanation:

Out of the two switches either one may be the right or none. If the bulb is not glowing, then switch on the third one, which will then be the right one for sure!

Answer 2

$\Large\text{\underline{\underline{Key to the question}}}$

The temperature of the bulb will increase if it is turned on for long enough.

Using this logic, we get three cases for the bulb.

The bulb turned on for a short time: Cool bulb.

The bulb turned on for a long time: Hot bulb.

The bulb turned off from the first place: Cool bulb.

$\Large\text{\underline{\underline{Explanation}}}$

$\large\boxed{\text{Step 1}}$

So, using this logic, we can find out which switch controls the bulb.

Switch 1: Turn it on long enough and keep it on.

Switch 2: Turn it on long enough, then turn it off before checking.

Switch 3: Turn it on before checking.

$\large\boxed{\text{Step 2}}$

Case 1: The bulb is hot and turned on.

→ Switch 1 controls the bulb.

Case 2: The bulb is hot and turned off.

→ Switch 2 controls the bulb.

Case 3: The bulb is cool and turned on.

→ Switch 3 controls the bulb.

So, in this way, we can solve our problem.