Winner of the sixth race doesn't need to race in the seventh race, because we know she's the winner. Instead the the horse that came third in her group needs to race in the seventh race because he can possibly be faster than the horse that came second in the sixth race. And all this, assuming the horses are very consistent in their speed, and don't, for example, get disproportionately slower as they get tired after the first race. Jen, your videos are extremely helpful. Thank you!
For the horse running question - what if the real top 3 all happen to be raced in the first race your run? Using your 7-race method, you are not getting the true 3rd place.
@@paragsaini2795 you could still do it with 7 races. You have 5 races to being with. You take the winner out of each of those races, race them together, and select the top three. Now the horses behind the 3rd place are out of the running because we know that they are slower than the first and second and third. We could still have doubts about the horses that came after the current first and second place horses. So actually, the only horses that have a chance of being in the top three are the 1st, 2nd, and 3rd from the overall race as well as the horse behind the second place overall winner because he could be faster than the overall 3rd place winner. The two horses behind the first overall winner are also still contenders. They could still be faster than the 2nd overall winner and the third overall winner. So that leaves us with 6 horses that could be in the top 3 which seems like a problem because there are only 5 tracks. Still, we actually know for sure that the overall 1st place winner is the fastest of them all so we can eliminate him from the final race and race the remaining 5 horses one more time and pick the best two out of that race. So that is still 7 races (:
There would be 8th races to take place, the 1st place, 2nd, 3rd placer from the 6th race along with the top 2 from the 7th race will determine the real top 3 because at 6th race all 1st placers from the 1st 5 race will compete then the 7th race all the 2nd placer from the 1st 5 race will compete too.
We would need 8 races. 5 races for the preliminary 1 race to determine the first place through racing the 5 winners of the 5 races prior 1 race to determine the second place through racing the 2nd place horse in the 1st place horse's bracket to the 4 losers of the previous race (The second place horse of the winner's bracket could be faster than any of the other bracket's 1st place horses) 1 race to determine the third place with the horses racing dependent on the result of the previous race - if the winner of the 2nd place race is in the winner's bracket of the 1st place race, then we take the 3rd place horse from that bracket and run the race - if the winner of the 2nd place race is anyone other than the winner's bracket, we take the 2nd place horse from the 2nd place bracket and run the race. We need to do the 8th race, because just like the 7th race, the runner-up horse of the 2nd place horse's bracket could be faster than the other horses.
I think we need 9 races, first 5 to run them all once. 6th one between the winners of the 5 rounds, 7th for the second place, 8th for the third and final 9th having the top two from race 6 and 7 and one from race 8 which will show us the true 1st-2nd-3rd
Why do we need 7th race? we know that the 6th race has the winners horses of all 5 groups, even the 2nd and 3rd horses in 6th race will still be faster from any other remaining horse in the first 5 groups?!!
Because of Races The fastest from 25 Need to run To check the fastest horses from group and race will go fine. Or the 6 horse Group will not fully cover the 7 from group and 7 from another group from fastest horse and = 5 horses
First of all if you answered at my interview like you did here in front of the camera You would not be on my list. I don't care if you are right or not but what I care is the way you explain your solution. You made it so complicated. that you nearly used all your hand fingers !!! You are not employed and you are getting thumbs DOWN!
Thanks for watching!
Have you been asked analytical puzzles in an interview? Let me know what challenge you were given.
save your time and go straight to the minute 3:30... u r welcome
Winner of the sixth race doesn't need to race in the seventh race, because we know she's the winner. Instead the the horse that came third in her group needs to race in the seventh race because he can possibly be faster than the horse that came second in the sixth race. And all this, assuming the horses are very consistent in their speed, and don't, for example, get disproportionately slower as they get tired after the first race. Jen, your videos are extremely helpful. Thank you!
Wow. Your tips and approach to such analytical question is quite helpful. Thanks for sharing.
For the horse running question - what if the real top 3 all happen to be raced in the first race your run? Using your 7-race method, you are not getting the true 3rd place.
We need 8 race for correctly identify top 3 horses
@@paragsaini2795 you could still do it with 7 races. You have 5 races to being with. You take the winner out of each of those races, race them together, and select the top three. Now the horses behind the 3rd place are out of the running because we know that they are slower than the first and second and third. We could still have doubts about the horses that came after the current first and second place horses. So actually, the only horses that have a chance of being in the top three are the 1st, 2nd, and 3rd from the overall race as well as the horse behind the second place overall winner because he could be faster than the overall 3rd place winner. The two horses behind the first overall winner are also still contenders. They could still be faster than the 2nd overall winner and the third overall winner. So that leaves us with 6 horses that could be in the top 3 which seems like a problem because there are only 5 tracks. Still, we actually know for sure that the overall 1st place winner is the fastest of them all so we can eliminate him from the final race and race the remaining 5 horses one more time and pick the best two out of that race. So that is still 7 races (:
This helped give me a boost of confidence for my interview this week. Thank you!
Its great the way you explained problem
Love this video, thank you!
In the horses' problem, what if the top three horses are from the same set of 5 horses?
There would be 8th races to take place, the 1st place, 2nd, 3rd placer from the 6th race along with the top 2 from the 7th race will determine the real top 3 because at 6th race all 1st placers from the 1st 5 race will compete then the 7th race all the 2nd placer from the 1st 5 race will compete too.
5:54 , the third fastest horse from the 6th race
My dream is to make analytical
We would need 8 races.
5 races for the preliminary
1 race to determine the first place through racing the 5 winners of the 5 races prior
1 race to determine the second place through racing the 2nd place horse in the 1st place horse's bracket to the 4 losers of the previous race (The second place horse of the winner's bracket could be faster than any of the other bracket's 1st place horses)
1 race to determine the third place with the horses racing dependent on the result of the previous race
- if the winner of the 2nd place race is in the winner's bracket of the 1st place race, then we take the 3rd place horse from that bracket and run the race
- if the winner of the 2nd place race is anyone other than the winner's bracket, we take the 2nd place horse from the 2nd place bracket and run the race.
We need to do the 8th race, because just like the 7th race, the runner-up horse of the 2nd place horse's bracket could be faster than the other horses.
very nice
I think we need 9 races, first 5 to run them all once. 6th one between the winners of the 5 rounds, 7th for the second place, 8th for the third and final 9th having the top two from race 6 and 7 and one from race 8 which will show us the true 1st-2nd-3rd
I think I would have done 8 races but seven is more efficient
I answered quickly so it was an estimation which wasn’t too bad
Why do we need 7th race? we know that the 6th race has the winners horses of all 5 groups, even the 2nd and 3rd horses in 6th race will still be faster from any other remaining horse in the first 5 groups?!!
Same answer why need 7th race ? From 5 races we get the fastest from 5 race and in 6th race we get the desired 1st 2nd and 3rd fastest horses
Because of Races The fastest from 25 Need to run To check the fastest horses from group and race will go fine. Or the 6 horse Group will not fully cover the 7 from group and 7 from another group from fastest horse and = 5 horses
Who are from 2024??
First of all if you answered at my interview like you did here in front of the camera You would not be on my list. I don't care if you are right or not but what I care is the way you explain your solution. You made it so complicated. that you nearly used all your hand fingers !!! You are not employed and you are getting thumbs DOWN!