Interested to Buy Any Domain ? << Click Here >> for more details...
Eleven boys and girls wait to take their seats in the same
row in a movie theater. There are exactly 11 seats in the row.
They decided that after the first person sits down, the next
person has to sit next to the first. The third sits next to
one of the first two and so on until all eleven are seated.
In other words, no person can take a seat that separates
him/her from at least one other person.
How many different ways can this be accomplished? Note that
the first person can choose any of the 11 seats.
- 9 Answers
- 15069 Views
- I also Faced
- E-Mail Answers
Answer Posted / guest
There are 1024 different ways.
This is the type of Brain Teaser that can be solved using
the method of induction.
If there is just a one person and one seat, that person has
only one option.
If there are two persons and two seats, it can be
accomplished in 2 different ways.
If there are three persons and three seats, it can be
accomplished in 4 different ways. Remember that no person
can take a seat that separates him/her from at least one
other person.
Similarly, four persons and four seats produce 8 different
ways. And five persons with five seats produce 16 different
ways.
It can be seen that with each additional person and seat,
the different ways increase by the power of two. For six
persons with six seats, there are 32 different ways.
For any number N, the different possible ways are 2(N-1)
Thus, for 11 persons and 11 seats, total different ways are
210 i.e. 1024
| Is This Answer Correct ? | 3 Yes | 2 No |
Post New Answer View All Answers
foot is related to man in the same way hoof is related to...........
Three neighbours are there. 1st one lends 2nd and 3rd that many no.of tractors that then already each had.After few months , 2nd lends to 1st and 3rd that many tractors then they had. After a few months 3rd lends to 1st and 2nd that many tractors then they had.Now each of them got 24. Find howmany they had initially?
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
There is puzzle with the word "CONSTANTINE" and exactly don't know the question if anybody knows the Q&A plz send it ahmed.basha.munna@gmail.com
Ship is 180 miles away from shore. At that time a plane started from shore to pass some information to the ship with 10 times velocity of ship's velocity. At what distance from shore they will meat?
IDear sir, I have had a data containing of 4 numbers on daily basis for which I would like to know what is the next comming 4 numbers. Based on that data I would like to find out the next comming numbers. Support needed. regards chandramohan gudivada 09849974512 cm116_99@yahoo.com Example : 4513, 4132, 1465, 2941, 1762, 1432, 3412, 5283, 7261, 2643, 4751, 2581, 6513 .... and what is the next number in the sequence?
In a soap company a soap is manufactured with 11 parts. For making one soap you will get 1 part as crap. At the end of the day u have 251 such scraps. From that how many soaps can be manufactured?
what three specific job positions do you target from qatar airways group u.k?
sir i need generalKnowledge previous questions for rrb secunderabad goods guard exam
what job position/s are you currently holding with your current employer?
4_4_4_4=22 use all sign of maths
Three members are hunting in a forest.While crossing a streem cartridges of two of them gets wetted up.Then the third person decides his cartidges equally. After 4 shots of each person, total cartridges remaining are equal to what each had initially after sharing.How many total cartridges they initially they shared?
4 cards are placed on a table, each card has two colors. U don't know the color of the back side of eachcard.4 persons A B C and D are sitting on the table before the cards. They can see Red, Green Red and blue.Out of the 4 poeple 2 always lie. They see the color on the reverse side and give the following comment A: Yello/green B: Neither Blue/nor Green c: Blue/Yello D: Blue/ Yello find out the color on the other side of the 4 cards. No. of animals is 11 more than the no. of birds. If the no. of birds were the no. of animals and no. of animals were the no. of birds( ie., interchanging no.s of animals and birds.), the total no. of legs get reduced by one fifth (1/5). How many no. of birds and animals were there?
plz send me aptitude test questions on my email id bpraichur@gmail.com
P pages read in d mins after day p+1 pages read in d+1 mins last day 379 pages done in 317 mins find p+4
