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 / karthik.r
5!days needed to select 5 horses form 25horses(each five
combination)
consider a(a1,a2,a3,a4,a5), b(b1,b2,...b5) c
d e are the hourses
'a' alone participate in 5 group of
combination with different combination of 5 hourses(eiter if
it a victor are as a defeat);
In 20 much of horses run in the single
group(because 25 horses are there i am say only 20 horses
remaining 5 hourses are not to repeat).
similarly b,c,d,e horses totaly 120 races
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