can anyone provide the answer for the puzzle below

There are 25 horses,in each race only 5 horses can
participate.how many races are required to select best 5
horses out of 25.

need answer with detailed explanation

Answer Posted / jayesh pakhale

Hi,
As per given problem, we need to choose best 5 horses among 25.
after first race we get 1 best among 5.
in second race we will include winner of first race and other 4 horses and get one winner. So now we have best one out of nine.
3rd race 1-winner from 2nd +4 new ->judged 13 horses
4th race " 3rd " -> " 17 "
5th " " 4th " -> " 21 "
6th " " 5th " -> " 25 "
put this best horse a side.
Now we need to choose 2nd best among 24 horses
7th race 1-winner ->judged 5 horses
8th race 1-winner from 7ht +4 new ->judged 9 horses
9th race 1-winner from 8th +4 new ->judged 13 horses
10th race1-winner from 9th +4 new ->judged 17 horses
11th race1-winner from 10th +4 new ->judged 21 horses
12th race1-winner from 11th +3 new ->judged 24 horses
put this best horse a side.
Now we need to choose 3rd best among 23 horses
13th race 1-winner ->judged 5 horses
14th race 1-winner from 13ht +4 new ->judged 9 horses
15th race 1-winner from 14th +4 new ->judged 13 horses
16th race1-winner from 15th +4 new ->judged 17 horses
17th race1-winner from 16th +4 new ->judged 21 horses
18th race1-winner from 17th +2 new ->judged 23 horses
put this best horse a side.
Now we need to choose 4th best among 22 horses
19th race 1-winner ->judged 5 horses
20th race 1-winner from 19ht +4 new ->judged 9 horses
21th race 1-winner from 20th +4 new ->judged 13 horses
22th race1-winner from 21th +4 new ->judged 17 horses
23th race1-winner from 22th +4 new ->judged 21 horses
24th race1-winner from 23th +1 new ->judged 22 horses
put this best horse a side.
Now we need to choose 5th best among 21 horses
25th race 1-winner ->judged 5 horses
26th race 1-winner from 25ht +4 new ->judged 9 horses
27th race 1-winner from 26th +4 new ->judged 13 horses
28th race1-winner from 27th +4 new ->judged 17 horses
29th race1-winner from 28th +4 new ->judged 21 horses
thus we got our 5th best horse after 29 race.
such every horse has been compared with each one.

Is This Answer Correct ?    2 Yes 4 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

foot is related to man in the same way hoof is related to...........

1958


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

2474


In country X, democratic, conservative and justice parties have fought three civil wars in twenty years. TO restore stability an agreement is reached to rotate the top offices President, Prime Minister and Army Chief among the parties so that each party controls one and only one office at all times. The three top office holders must each have two deputies, one from each of the other parties. Each deputy must choose a staff composed of equally members of his or her chiefs party and member of the third party. 1. When Justice party holds one of the top offices, which of the following cannot be true (a) Some of the staff members within that office are justice party members (b) Some of the staff members within that office are democratic party members (c) Two of the deputies within the other offices are justice party members (d) Two of the deputies within the other offices are conservative party members (e) Some of the staff members within the other offices are justice party members. 2. When the democratic party holds presidency, the staff of the prime minister's deputies are composed I. One-fourth of democratic party members II. One-half of justice party members and one-fourth of conservative party members III. One-half of conservative party members and one-fourth of justice party members. (a) I only (b) I and II only (c) II or III but not both (d) I and II or I and III (e) None of these 3. Which of the following is allowable under the rules as stated: (a) More than half of the staff within a given office belonging to a single party (b) Half of the staff within a given office belonging to a single party (c) Any person having a member of the same party as his or her immediate superior (d) Half the total number of staff members in all three offices belonging to a single party (e) Half the staff members in a given office belonging to parties different from the party of the top office holder in that office. 4. The office of the Army Chief passes from Conservative to Justice party. Which of the following must be fired. (a) The democratic deputy and all staff members belonging to Justice party (b) Justice party deputy and all his or hers staff members (c) Justice party deputy and half of his Conservative staff members in the chief of staff office (d) The Conservative deputy and all of his or her staff members belonging to Conservative party (e) No deputies and all staff members belonging to conservative parties.

5896


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

2022


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?

935






what three specific job positions do you target from qatar airways group u.k?

2688


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?

826


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?

838


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?

969


4_4_4_4=22 use all sign of maths

949


why should we hire the others waiting to be interviewed?

2449


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?

1084


In rail road there are some stations. Each station should have tickets to all other stations.If they add some new stations they need 46 more tickets.How many stations are there before and after adding the stations?

781


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

1500


At 6o'clock ,a watch strokes 6 times.The time between first and last is 30secs.At midnight 12o' clock how much time for all strokes?

1022