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 Posted / jason mitchell
It is 7. You race all the horses in batches of five. Now
you take all the first place houses and race them in a '6th
race'. Now this will tell us the fastest horses and we also
know that the horses that finished 4th and 5th in
this 'sixth race' cannot be in the top 3. So we have a 7th
race which we race 2nd and 3rd from the '6th race', but we
also have to add in the 2nd and 3rd places horses from the
overall winners original group and then we add 2nd place
horse from the original group of the 2nd place horse in the
6th race.
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