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
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Answer / subhas rakshit
We need exactly 10 races for determiming best 5 horses.
In each of first five races we will rank each five horses
A, B,C,D&E ( A being ths fastest and E slowest) in the
group.It will be done for all 5 groups.
In the sixth race ( among the first of each group) we will
get the fastest horse and rank these five horses
1A,2A,3A,4A & 5A (1A being the fastest and 5A slowest)
Now we have got the fastest horse 1A and will also set
nomenclature for each horses
1A 1B 1C 1D 1E
2A 2B 2C 2D 2E
3A 3B 3C 3D 3E
4A 4B 4C 4D 4E
5A 5B 5C 5D 5E
We will start conducting further races selecting one from
each row. Obviously the fastest of the remaining horses in
the row will take part.For e.g. the seventh race will be
between 1B & 2A (no need to run 3A,4A & 5A)for determing
2nd fastest horse.
The 8th race will determine the third place and it will be
between 1C and 2B ( in case 1B wins 7th race) or among
1B,2B & 3A ( in case 2A wins 7th race).
The 9th race will determine the 4th place and the 10th race
will determine 5th place.
Note : And moving on 25 th race will determine 20th
place.Just follow the simple rule : selct the fastest of
the remaining horses from each row for the race.
| Is This Answer Correct ? | 1 Yes | 8 No |
Answer / panneer selvam
the answer is 5.in five races a single horse can be
identified best,the one which comes first.from five
races,the best five horses can be determined..
| Is This Answer Correct ? | 3 Yes | 15 No |
RAW means
What is the minimum number of races required to pick the best three horses from 25 horses if each race has maximum of 5 horses?
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