Table:
0
A
B
C
D
E
F
1
Call sign
Frequency MHz
City of license
ERP W
Class
FCC info
2
W244BG
96.7
Lanesborough, Massachusetts
1
D
FCC
3
W234AL
94.7
North Adams, Massachusetts
50
D
FCC
4
W248AX
97.5
Albany, New York
100
D
FCC
5
W254AM
98.7
Berlin, New York
1
D
FCC
6
W242AL
96.3
Buskirk, New York
80
D
FCC
7
W279AL
103.7
Catskill (town), New York
15
D
FCC
8
W272AZ
102.3
Coxsackie (town), New York
10
D
FCC
9
W239AG
95.7
Long Lake, New York
5
D
FCC
10
W230AO
93.9
Speculator, New York
10
D
FCC
11
W278AN
103.5
Tupper Lake, New York
50
D
FCC
12
W253AF
98.5
Bennington, Vermont
42
D
FCC
13
W269BA
101.7
Woodford, Vermont
1
D
FCC

Questions and formulas:
Question: Which call sign, broadcast at less than 103.5MHz, has an ERP W of 50?
Formula: LET(query1,SUMMARIZE(A1,SUMX(D1),SUMX(B1)),FILTER(query1,(CHOOSECOLS(query1,2)=50)*(CHOOSECOLS(query1,3)<103.5)))
Formula2: LET(query1,SUMMARIZE(A2:A13,SUMX(D2:D13),SUMX(B2:B13)),FILTER(query1,(CHOOSECOLS(query1,2)=50)*(CHOOSECOLS(query1,3)<103.5)))
Level: hard
Question: What is the frequency of the call sign licensed in Albany, New York?
Formula: SUMIFS(B1,C1,"albany, new york")
Formula2: SUMIFS(B2:B13,C2:C13,"albany, new york")
Level: easy