Interested to Buy Any Domain ? << Click Here >> for more details...
A blindfolded man is asked to sit in the front of a carrom
board. The holes of the board are shut with lids in random
order, i.e. any number of all the four holes can be shut or
open.
Now the man is supposed to touch any two holes at a time and
can do the following.
? Open the closed hole.
? Close the open hole.
? Let the hole be as it is.
After he has done it, the carrom board is rotated and again
brought to some position. The man is again not aware of what
are the holes which are open or closed.
How many minimum number of turns does the blindfolded man
require to either open all the holes or close all the holes?
Note that whenever all the holes are either open or close,
there will be an alarm so that the blindfolded man will know
that he has won.
- 4 Answers
- 13723 Views
- I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / guest
The blindfolded man requires 5 turns.
1. Open two adjacent holes.
2. Open two diagonal holes. Now atleast 3 holes are open. If
4th hole is also open, then you are done. If not, the 4th
hole is close.
3. Check two diagonal holes.
o If one is close, open it and all the holes are open.
o If both are close, open any one hole. Now, two holes are
open and two are close. The diagonal holes are in the
opposite status i.e. in both the diagonals, one hole is open
and one is close.
4. Check any two adjacent holes.
o If both are open, close both of them. Now, all holes are
close.
o If both are close, open both of them. Now, all holes are
open.
o If one is open and one is close, invert them i.e. close
the open hole and open the close hole. Now, the diagonal
holes are in the same status i.e. two holes in one diagonal
are open and in other are close.
5. Check any two diagonal holes.
o If both are open, close both of them. Now, all holes are
close.
o If both are close, open both of them. Now, all holes are open.
| Is This Answer Correct ? | 9 Yes | 3 No |
Answer / shakti
A little correction !
It would be
3. Check two diagonal holes.
o If one is close, open it and all the holes are open.
o If both are open, close any one hole. Now, two holes are
open and two are close. The diagonal holes are in the
opposite status i.e. in both the diagonals, one hole is open
and one is close.
| Is This Answer Correct ? | 5 Yes | 2 No |
Answer / puzzzzz....
i couldn't understand the above soln. Will someone please
explain the soln. in simple and clear words
| Is This Answer Correct ? | 2 Yes | 0 No |
Answer / eveline
Hello
My name is eveline i saw your profile today at
www.allinterview.com and i love it also became intrested in
you,i will also like to know you more,and i want you to send
an email directely to my email address so i can give you my
picture for you to know whom i am.Here is my email
address(eveline.mbia@yahoo.com) i believe we can move from
here.my love distance or colour does not matter but love
matters alot in life.i waiting to recive your lovely reply
soon, Yours Love.
Miss Eveline.
| Is This Answer Correct ? | 1 Yes | 1 No |
How we get get 13*12=750 if any one knows how it is done plz answer it?
wo konsi chiz hai jo adi honay k bad b puri he rehti hai, or agr khatam b ho jae tab b puri he rehti hai. what is this?
Which figure should be placed in the empty triangle? 6 7 7 6 8 6 6 ? 2 2 5 3 4 2 5 3
At what time immediately prior to Six O'clock the hands of the clock are exactly opposite to each other. Give the exact time in hours, minutes and seconds.
There are 3 ants at 3 corners of a triangle, they randomly start moving towards another corner. What is the probability that they don't collide?
Four couples are going to the movie. Each row holds eight seats. Betty and Jim don't want to sit next to Alice and Tom. Alice and Tom don't want to sit next to Gertrude and Bill. On the otherhand, Sally and Bob don't want to sit next to Betty and Jim. How can the couples arrange themselves in a row so that they all sit where they would like?
To move a safe, two cylindrical steel bars 7 cms in diameter are used as rollers. How far will the safe move forward when the rollers have made one revolution?
plz send me aptitude test questions on my email id bpraichur@gmail.com
A group of friends went on a holiday to a hill station. It rained for 13 days. But when it rained in the morning, the afternoon was lovely. And when it rained in the afternoon, the day was preceded by clear morning. Altogether there were 11 very nice mornings and 12 very nice afternoons. How many days did their holiday last?
Find the least number which when divided by 35, leaves remainder 25; when divided by 45, leaves remainder 35 and when divided by 55, leaves remainder 45.
Wo kay chej hi jo saal may 1 baar aata hai months may 2 baar aata hai weeks may 4 baar aata hai or din may 6 baar
0 Answers College School Exams Tests,
Question asked in Infosys Campus Recruitment Held at Pragathi. On an iceland few customs are there .Men always speak truth, no women tells consecutive truth or false i.e. If first statement is true ,second is false and vice versa. same with children also. There was a family couple and a child. A passenger asked the child ?are you a boy or a girl? the boy spoke german. one of the parent said ? he is a boy? the other said ?he is a girl? ?he is lying?. (i)The kid is boy or girl (ii)who spoke the first mother/father
English 
