请教

scholar

What is the sum of a certain pair of consecutive odd integers?

(1)at least one of the integers is negative

(2)at least one of the integers is positive


C
There are exactly 6 teams in league X. What was the total number of games played by 6 teams last season ?

(1)Each team in league X played each of the other teams at least once

(2)No team in league X played more than 7 games

E