Table:
0
A
B
C
D
E
1
Year
Entrant
Chassis
Engine
Pts.
2
1981
Osella Squadra Corse
Osella FA1B
Ford Cosworth DFV V8
0
3
1983
Osella Squadra Corse
Osella FA1D
Ford Cosworth DFV V8
0
4
1983
Osella Squadra Corse
Osella FA1E
Alfa Romeo V12
0
5
1984
Osella Squadra Corse
Osella FA1F
Alfa Romeo V8 (t/c)
2
6
1985
Osella Squadra Corse
Osella FA1F
Alfa Romeo V8 (t/c)
0
7
1985
Osella Squadra Corse
Osella FA1G
Alfa Romeo V8 (t/c)
0
8
1985
Toleman Group Motorsport
Toleman TG185
Hart Straight-4 (t/c)
0
9
1986
Osella Squadra Corse
Osella FA1F
Alfa Romeo V8 (t/c)
0
10
1986
Osella Squadra Corse
Osella FA1H
Alfa Romeo V8 (t/c)
0
11
1986
Osella Squadra Corse
Osella FA1G
Alfa Romeo V8 (t/c)
0
12
1987
Ligier Loto
Ligier JS29B
Megatron Straight-4 (t/c)
0
13
1987
Ligier Loto
Ligier JS29C
Megatron Straight-4 (t/c)
0
14
1988
Zakspeed
Zakspeed 881
Zakspeed Straight-4 (t/c)
0
15
1988
Zakspeed
Zakspeed 881B
Zakspeed Straight-4 (t/c)
0
16
1989
Osella Squadra Corse
Osella FA1M89
Ford Cosworth DFR V8
0

Questions and formulas:
Question: What engine has more than 0 pts?
Formula: LET(query1,SUMMARIZE(D1,SUMX(E1)),FILTER(query1,CHOOSECOLS(query1,2)>0))
Formula2: LET(query1,SUMMARIZE(D2:D16,SUMX(E2:E16)),FILTER(query1,CHOOSECOLS(query1,2)>0))
Level: hard
Question: What is the average pots of Alfa Romeo v12 after 1983?
Formula: AVERAGE(FILTER(E1, (D1="alfa romeo v12")*(A1>1983)))
Formula2: AVERAGE(FILTER(E2:E16, (D2:D16="alfa romeo v12")*(A2:A16>1983)))
Level: easy