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 / tarun
the ans is 30
how-
step 1-
first best horse can be found by having 6 races
every time a race is made,4 horses are eleminated and the
best is to race with other 4.
likewise 4+4+4+4+4+4=24 horses eleminated
total horses=24(eleminated)+1(best).
now likewise we find the the other best horses removing the
best horses obtained earlier from d group.
for second best horse
4+4+4+4+4+3=23 horses eleminated
total horses=23(eleminated)+1(best).
hence total races required will be=6*5=30
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