En güçlü veya en zeki olan değil, DEĞİŞİME en açık olan türler hayatta kalır...Charles Darwin
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ben 12 yarış olarak buldum
internetteki cevap malesef yanlış.
ilk 5'erli koşularda grupların sadece birincilerini alıyor.
oysa ki en hızlı 3 atın da ilk koşularda aynı gruba denk gelme olasılığı var.
ilk koşuların sadece birincilerini toplayıp gerisini elerse, en hızlı 2. ve 3. atı elemiş olma ihtimali var.
Evi tutarken herkes iyidir. Yeni kiracı adayınız iyi birine benziyor olsa da, DAVA GEÇMİŞİNİ mutlaka isteyin.
https://www.milliyet.com.tr/ekonomi/...nir-mi-6994969
Ben de ahaliyi fazla yormayayım...benim de uykum geldi...
Cevap aşağıda;
Solution : Let the horses be numbered as H1, H2,..., H24, H25. Now First arrange 5 races among horses as :
Race 1: H1, H2, H3, H4, H5(let's say that H1 comes first in the race then H2 then H3 then H4 and then H5 and similarly happens for the next races...)
Race 2: H6, H7, H8, H9, H10
Race 3: H11, H12, H13, H14, H15
Race 4: H16, H17, H18, H19, H20
Race 5: H21, H22, H23, H24, H25
Now arrange race between winner's of all the above races as :
Race 6: H1, H6, H11, H16, H21
So, Now we have H1 , H6, H11 as top 3 winner's of Race 6. So, There are some points that can be noticed through race 6, as:
1) As H16 comes fourth in the race, so we can be sure that horses (H17, H18, H19, H20) cannot acquire top 3 positions rather they can be at any position between fifth one to last position. So, In our final race we do not need to include H16, H17, H18, H19, and H20 as we are interested in only top 3 fastest horses.
2) As H21 comes fifth in the race, so we can be sure that horses (H22, H23, H24, H25) cannot acquire top 3 positions rather they can be at any position between sixthone to last position. So, In our final race we do not need to include H21, H22, H23, H24, and H25 as we are interested in only top 3 fastest horses.
3) As H11 comes third in the race, so we can be sure that horses (H12, H13, H14, H15) cannot acquire top 3 positions rather they can be at any position between fourthone to last position. So, In our final race only H11 will participate and rest all (H12,H13, H14, and H15) need not to participate as we are interested in only top 3 fastest horses.
4) As H6 comes second in the race, so we can be sure that only H7 could have the possibility of third fastest horse and horses (H8, H9, H10) cannot acquire top 3 positions rather they can be at any position between fourth one to last position. So, In our final race only H6 and H7 will participate and rest all (H8, H9, and H10) need not to participate as we are interested in only top 3 fastest horses.
5) As H1 wins race 1 and also wins the race with the winner of all rest of the races, so, till now we have found that H1 is the fastest horse among all. So, we do not need to race H1 again with any other horse.
6) As H1 comes first in the race, so we can be sure that only H2 and H3 could have the possibility of second and third fastest horse respectively and horses (H4, H5)cannot acquire top 3 positions rather they can be at any position between fourth oneto last position. So, In our final race only H4 and H5 will participate and rest all (H8, H9, and H10) need not to participate as we are interested in only top 3 fastest horses. So, for our final race, we have H2, H3, H6, H7, and H11 as the competitors of second and third position. So, we have,
Race 7: H2, H3, H6, H7, H11 Let's say H2 and H3 comes at first and second position respectively. So, finally we have top 3 fastest horses in just 7 races among 25 horses as:H1 > H2 > H3
Twinkle twinkle little star,
Soon you won't be twinkling anymore.....
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