Table:
0
A
B
C
D
E
1
Year
Entrant
Chassis
Engine
Points
2
1950
I R C
Maserati
Maserati L4
0
3
1951
Central Excavating
Trevis
Offenhauser L4
0
4
1952
Fuel Injection
Kurtis Kraft KK500A
Offenhauser L4
1
5
1953
Fuel Injection
Kurtis Kraft KK500A
Offenhauser L4
9
6
1954
Fuel Injection
Kurtis Kraft KK500A
Offenhauser L4
8
7
1955
Hopkins
Kurtis Kraft KK500C
Offenhauser L4
1

Questions and formulas:
Question: Which entrant scored less than 8 points and used a Maserati chassis?
Formula: LET(query1,LET(query1,FILTER(A1:E1,C1="maserati"),SUMMARIZE(CHOOSECOLS(query1,2),SUMX(CHOOSECOLS(query1,5)))),FILTER(query1,CHOOSECOLS(query1,2)<8))
Formula2: LET(query1,LET(query1,FILTER(A2:E7,C2:C7="maserati"),SUMMARIZE(CHOOSECOLS(query1,2),SUMX(CHOOSECOLS(query1,5)))),FILTER(query1,CHOOSECOLS(query1,2)<8))
Level: hard
Question: Which entrant, with an Offenhauser L4 engine and a Kurtis Kraft KK500A chassis, scored 9 points before 1955?
Formula: LET(query1,LET(query1,FILTER(A1:E1,(D1="offenhauser l4")*(A1<1955)*(C1="kurtis kraft kk500a")),SUMMARIZE(CHOOSECOLS(query1,2),SUMX(CHOOSECOLS(query1,5)))),FILTER(query1,CHOOSECOLS(query1,2)=9))
Formula2: LET(query1,LET(query1,FILTER(A2:E7,(D2:D7="offenhauser l4")*(A2:A7<1955)*(C2:C7="kurtis kraft kk500a")),SUMMARIZE(CHOOSECOLS(query1,2),SUMX(CHOOSECOLS(query1,5)))),FILTER(query1,CHOOSECOLS(query1,2)=9))
Level: hard
Question: What type of engine did the Fuel Injection entrant use?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="fuel injection"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,B2:B7="fuel injection"),4))
Level: medium
Question: What is the average number of points for an Offenhauser L4 engine with a Trevis chassis?
Formula: AVERAGE(FILTER(E1, (D1="offenhauser l4")*(C1="trevis")))
Formula2: AVERAGE(FILTER(E2:E7, (D2:D7="offenhauser l4")*(C2:C7="trevis")))
Level: easy