Table:
text: Halifax Dukes
1966 Season - finished 1st (54pts) out of 19
1966 Season - finished 1st (54pts) out of 19
Rider Matches Rides Bonus_Pts Total_Points
Eric Boocock 38 161 19 421
Eric Boothroyd 38 164 36 381
Dave Younghusband 38 160 5 353
Tommy Roper 39 158 42 297
Bert Kingston 32 120 29 180
Bob Jameson 41 151 38 203
Dennis Gavros 40 134 31 167
Greg Kentwell 6 14 3 14
Maurie Robinson 6 12 1 7
Ian Wilson 1 2 0 0

Question: Among the Halifax Dukes who finished 1st in 1966 season '19 with 54 points, what was the average number of points with bonus points less than 31 with driver Dennis Gavros?

Question: Halifax Dukes in 1966 season - 1st place (54 points) of 19, how many total games involving Dennis Gavros have had less than 167 points total?

Question: What is the smallest number of Halifax Dukes in the 1966 season to finish 1st with 54 points from 19 games with bonus points of 19 and total points greater than 421?