Table: euro_challenge_cup_stats
Columns: team
tries_for
tries_against
try_diff
points_for
points_against
points_diff

Question: What is the average tries for less than 117 points and less than 48 tries against?
SQL: SELECT AVG("tries_for") FROM euro_challenge_cup_stats WHERE "points_for" < 117 AND "tries_against" < 48