8. On a race track a maximum of 5 horses can race together at a time. There are a total of 25 horses. There is no way of timing the races. What is the minimum number of races we need to conduct to get the top 3 fastest horses?
(a) 5
(b) 7
(c) 8
(d) 11
grcb:
answer is 7
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Answered by
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its easy a is the answer
answer is 7
since there is no timing in 5 race we cant tell the top 3 since top 3 can also be from a songle race so in 6 th race we will run the top most horse of every race then from this we got the top most horse the for 2 top most and 3 rd top most in7 th race the candidate will be top2 of 1 top candidate horse as they can be the the fastest and what we got 2top in 6th race that n its 2one and then 3rd top most of 6th race from all these 5. we will be getting 2n 3 top
Answered by
1
If timing cannot be done then it should be 6... but since there is no option.... try 8
ans is 7
see comment for ans
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