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Outside a room there are three light switches. Each switch
is connected to a different light bulb inside the room.
Each of the three switches can be either 'ON' or 'OFF'.
You are allowed to set each switch the way you want it,
once, and then enter the room.
Your task is to then determine which switch controls which
bulb. How can you do it?
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Answer / swet
on the first switch and leave for 5 mins..then off tat and
ON the second switch and enter the room..In room hotter bulb
belongs to first switch..the light which is "ON" belongs to
second siwtch..remain belongs to third switch..
| Is This Answer Correct ? | 16 Yes | 1 No |
Answer / pooja
we intially switch on the first switch ,after 5 min second
switch then after 5 min third switch and when we enter the
room then the bulb which is hottest belongs to first switch
and the bulb which is little hotter belongs to second switch
and so on
| Is This Answer Correct ? | 6 Yes | 2 No |
Answer / anish rajan kurian
you cant switch off a switch which u hv already switched on..
the question says
You are allowed to set each switch the way you want it,
once,
It can be either switched on or off..since once is mentioned..
hence,
switch on one switch..wait for 5mins..switch on the next one and enter..
the one which is glowing and hot is the first switch..
the one which is glowing and not hot is the second switch..
the one which is not glowing is the third switch..
| Is This Answer Correct ? | 4 Yes | 0 No |
Answer / shalaka datar
whatever the pooja said is absolutely right!!!!!are pehele
1 button lagao.10 min ruko .then wo bwnd karo.then 2nd
button chalu karo.ab uppar jao.jo bulb on hai wo 2nd.jo
garm hai wo 1 st.and remaning is the 3rd!!!!!!!!!!!
so easy na!!!!!!!!!
| Is This Answer Correct ? | 1 Yes | 1 No |
Answer / aj_add@yahoo.co.in
First of all switch on first switch after 15 min. off switch first and switch on second switch and go to the room.
Which Bulb is on that is second second.
Which bulb is hottest that is connected with first switch and which is cold and off that is connected with third switch.
| Is This Answer Correct ? | 1 Yes | 1 No |
Answer / gghnn
Since question doesn't say you have to find in one try, so just keep one ON then check the room. Do it three times could find it easily.👍
| Is This Answer Correct ? | 0 Yes | 0 No |
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English 
