Question

Brainly Horses xD

Google Interview -

Solve the above problem ⤴

❤ Brainly by Brian ❤ ♥100♥​

Answer 1

Just seven races are enough to find the fastest horse among the 25 horses...there is no need of any watch..

Answer 2

answer :7 races

reason details:

1. we have 5 races for 25 horses that 5 horses on a team, define each team as a, b, c, d, e.

2. carry a best horse race for each team first place, define them as a.1,b.1,c.1,d.1,e.1

3. assume prior best horse race 's top 3 places are a.1 b.1 c.1 , so we know the fastest horse is a.1, we only need to take last race to know who are second and third quickest horse. The horses that participate in this race are b.1 b.2 a.2 a.3 c.1 , this race 's top 2 places are 2nd and 3rd quickest horses