Table:
0
A
B
C
D
E
F
G
H
1
School
Location
Mascot
County
Enrollment
IHSAA Class
Year Joined
Previous Conference
2
Borden *
Borden
Braves
228
A
10 Clark
1974
Lost River
3
Crothersville *
Crothersville
Tigers
180
A
36 Jackson
1974
Mid-Hoosier
4
Henryville
Henryville
Hornets
347
AA
10 Clark
1977
Lost River
5
Lanesville
Lanesville
Eagles
237
A
31 Harrison
1979
Blue River
6
New Washington
New Washington
Mustangs
273
A
10 Clark
1974
Dixie-Monon
7
South Central (Elizabeth)
Elizabeth
Rebels
277
A
31 Harrison
1979
Blue River

Questions and formulas:
Question: Which school has an enrollment of A and had lost river as their previous conference?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:H1,(H1="lost river")*(E1="a")),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:H7,(H2:H7="lost river")*(E2:E7="a")),1))
Level: medium
Question: What is the average year joined of the 277 county?
Formula: AVERAGE(FILTER(G1, D1=277))
Formula2: AVERAGE(FILTER(G2:G7, D2:D7=277))
Level: easy
Question: What is the IHSAA class of the county that is less than 228?
Formula: LET(query1,SUMMARIZE(F1,SUMX(D1)),FILTER(query1,CHOOSECOLS(query1,2)<228))
Formula2: LET(query1,SUMMARIZE(F2:F7,SUMX(D2:D7)),FILTER(query1,CHOOSECOLS(query1,2)<228))
Level: hard