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 / vicky
racing 25 horses in groups of 5 n selecting the best among
them is wrong.....because,the remaining four horses in each
group can overtake the one which comes first in the other
groups....
according to me,using probability concept of combinations,it
wil be
25!/(20!*5!)
on simplifying,it will be (25*24*23*22*21)/(5*4*3*2*1)
=6375600/120
=5313
| Is This Answer Correct ? | 2 Yes | 3 No |
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