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 |
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