You have 9 horses and you have to select fastest 3. You can make a race of 3 horses in one time. So how many time you have to make a race? thanks :-)
nitin1
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Jump to PostI think it's at worst six assuming you can't time the horses.
How would the six races be arranged to find the fastest three?
Technically speaking, you would need to be careful of how many races each horse participates in. Depending on how you organise the race, you …
Jump to PostHow many races are you suggesting it would take to determine the fastest horses?
I wonder if just one race would do? You could arrange a Relay Race. A timer still hasn't been ruled out by the questioner, so the fastest horses would be seen in a short period of …
Jump to PostIf you want the wordier explanation...
Race three groups of three horses to determine the fastest horse in each group. Race the winners of those three races to determine the fastest horse. Next, race the two slower horses from race 4 against the remaining two horses in the group from …
Jump to PostI think I've found a way to do in at most six races. I have not totally convinced myself that it cannot be done with fewer, but I think the logic below proves all possible cases can be done in at most 6 races.
Horses will be names H1 through …
Jump to PostI admit the problem had me bugged (ugh) but I am definitely gnat giving up (sorry).
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