Table:
0
A
B
C
D
E
1
Concessionaire
FA Division(s)
Gauge
Length, km
Takeover Date
2
Ferroexpreso Pampeano
Roca, Sarmiento, Mitre
broad
5094
1 Nov. 1991
3
Nuevo Central Argentino
Mitre
broad
4900
23 Dec. 1992
4
Ferrosur Roca
Roca
broad
3145
11 Mar. 1993
5
Buenos Aires al Pacifico – San Martín
San Martín
broad
5690
26 Aug. 1993
6
Mesopotámico General Urquiza
Urquiza
standard
2704
22 Oct. 1993
7
Belgrano Cargas
Belgrano
metre
9860
16 Nov. 1999

Questions and formulas:
Question: What was the guage of the concessionaire ferrosur roca?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="ferrosur roca"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,A2:A7="ferrosur roca"),3))
Level: medium
Question: Which FA Division has a length of 2704 km?
Formula: LET(query1,SUMMARIZE(B1,SUMX(D1)),FILTER(query1,CHOOSECOLS(query1,2)=2704))
Formula2: LET(query1,SUMMARIZE(B2:B7,SUMX(D2:D7)),FILTER(query1,CHOOSECOLS(query1,2)=2704))
Level: hard
Question: What is the takeover date of the FA division mitre?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="mitre"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,B2:B7="mitre"),5))
Level: medium