Table:
0
A
B
C
D
E
F
1
Call sign
Frequency MHz
City of license
ERP W
Class
FCC info
2
K224BV
92.7
Kingman, Arizona
82
D
FCC
3
K246AE
97.1
Lake Havasu City, Arizona
10
D
FCC
4
K248BJ
97.5
Mohave Valley, Arizona
220
D
FCC
5
K264AK
100.7
Laughlin, Nevada
10
D
FCC
6
KJJJ-FM1 booster
102.3
Lake Havasu City, Arizona
1,000
D
booster FCC
7
KJJJ-FM2 booster
102.3
Kingman, Arizona
500
D
booster FCC
8
K292ES
106.3
Cane Springs, Arizona
51
D
FCC
9
K292EU
106.3
Laughlin, Nevada
10
D
FCC
10
K294BV
106.7
Lake Havasu City, Arizona
10
D
FCC

Questions and formulas:
Question: What is the class for the ERP W of 500?
Formula: LET(query1,SUMMARIZE(E1,SUMX(D1)),FILTER(query1,CHOOSECOLS(query1,2)=500))
Formula2: LET(query1,SUMMARIZE(E2:E10,SUMX(D2:D10)),FILTER(query1,CHOOSECOLS(query1,2)=500))
Level: hard
Question: What is the ERP W for the station whose call sign is K248BJ and whose frequency MHz is higher than 97.5?
Formula: SUM(FILTER(D1, (A1="k248bj")*(B1>97.5)))
Formula2: SUM(FILTER(D2:D10, (A2:A10="k248bj")*(B2:B10>97.5)))
Level: easy
Question: In which city is the station licensed whose frequency MHz is higher than 102.3 and the ERP W is lower than 1,000?
Formula: LET(query1,SUMMARIZE(C1,SUMX(B1),SUMX(D1)),FILTER(query1,(CHOOSECOLS(query1,2)=102.3)*(CHOOSECOLS(query1,3)<1000)))
Formula2: LET(query1,SUMMARIZE(C2:C10,SUMX(B2:B10),SUMX(D2:D10)),FILTER(query1,(CHOOSECOLS(query1,2)=102.3)*(CHOOSECOLS(query1,3)<1000)))
Level: hard
Question: In which city is the station licensed whose frequency MHz is higher than 102.3 and whose call sign is K292EU?
Formula: LET(query1,LET(query1,FILTER(A1:F1,A1="k292eu"),SUMMARIZE(CHOOSECOLS(query1,3),SUMX(CHOOSECOLS(query1,2)))),FILTER(query1,CHOOSECOLS(query1,2)>102.3))
Formula2: LET(query1,LET(query1,FILTER(A2:F10,A2:A10="k292eu"),SUMMARIZE(CHOOSECOLS(query1,3),SUMX(CHOOSECOLS(query1,2)))),FILTER(query1,CHOOSECOLS(query1,2)>102.3))
Level: hard