Skip to content / Đến nội dung
ThichHocToan.com

APMOPS 2017 Question 28

APMOPS · APMOPS 2017

Question 28

2017 schools participated in a big inter-school chess competition. Each school sent in 2 participants.

The rules of the competition were:

i) Participants do not compete with each other for more than 1 game,

ii) Participants from the same school cannot compete with each other.

After many rounds of the competition, it was known that every participant had completed a different number of games except participants from one of the 2017 schools. How many games had each of these 2 participants from the same school completed?