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

Answer Posted / jayesh pakhale

We cannot choose best five. Answer is not possible. Because
we need to choose best 5 out of 25 not an accumulation of
best 5 one from each group. Why answe is not possible: Here
from the 1st group we cannot select any one or we cannot
select all 5, becasue this group may be fastest group from
all 25 hourses or may be a slowest group or may be a
intermideate. We don't know from this first group how may
houses are best among 25.

Is This Answer Correct ?    8 Yes 7 No



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