Table:
0
A
B
C
D
E
F
G
1
PRR Class
Builder’s Model
Build date
Total produced
Wheel arrangement
Service
Power output
2
BS6
VO-660
1942–1945
12
B-B
Switcher
hp (kW)
3
BS6
DS-4-4-660
1942–1945
99
B-B
Switcher
hp (kW)
4
BS7
DS-4-4-750
1951
24
B-B
Switcher
hp (kW)
5
BS7
S7
1951
7
B-B
Switcher
hp (kW)
6
BS10
VO
1943–1945
8
B-B
Switcher
hp (kW)
7
BS10
DS-4-4-1000
1948–1950
137
B-B
Switcher
hp (kW)
8
BS12
S-12
1951–1956
98
B-B
Switcher
hp (kW)
9
BF15
DR-4-4-1500
1940–1950
34
B-B
Freight
hp (kW)
10
BF16
RF-16 (A)
1950–1952
72
B-B
Freight
hp (kW)
11
BF16
RF-16 (B)
1950–1952
30
B-B
Freight
hp (kW)
12
BP60a
DR-12-8-3000
1947–1948
24
2-D-D-2
Pass
hp (kW)
13
BP20
DR-6-4-2000
1948
18
A1A-A1A
Pass
hp (kW)
14
BP20
DR-6-4-2000
1948
9
A1A-A1A
Pass
hp (kW)
15
BRS10
DRS-4-4-1000
1949–1950
6
B-B
Pass
hp (kW)
16
BRS12
RS-12
1951–1954
8
B-B
Pass
hp (kW)
17
BRS15
DRS-4-4-1500
1950
8
B-B
Pass
hp (kW)
18
BRS16
AS-16
1953–1955
28
C-C
Pass
hp (kW)
19
BRS24
RT-624
1951–1954
22
C-C
Transfer
hp (kW)
20
LRS25
T2500
1950–1951
22
C-C
Transfer
hp (kW)

Questions and formulas:
Question: What is the build date of the model with PRR Class brs24?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,A1="brs24"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G20,A2:A20="brs24"),3))
Level: medium
Question: How many total units were built of Model ds-4-4-660 with a b-b wheel arrangement and a PRR Class of bs6?
Formula: SUM(FILTER(D1, (E1="b-b")*(A1="bs6")*(B1="ds-4-4-660")))
Formula2: SUM(FILTER(D2:D20, (E2:E20="b-b")*(A2:A20="bs6")*(B2:B20="ds-4-4-660")))
Level: easy
Question: What is the build date of the model with a PRR Class of brs24?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,A1="brs24"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G20,A2:A20="brs24"),3))
Level: medium