Table:
0
A
B
C
D
E
F
G
1
Class
Firebox
Cylinder size
Valves
Valve gear
Number built
Years built
2
E2
Radial-stay
20 ½” x 26”
Slide
Stephenson
88
1901-02
3
E2a
Belpaire
20 ½” x 26”
Slide
Stephenson
93
1902-05
4
E2b
Belpaire
20 ½” x 26”
Piston
Stephenson
70
1903-04
5
E2c
Belpaire
20 ½” x 26”
Slide
Stephenson
22
1903
6
E2d
Belpaire
20 ½” x 26”
Piston
Walschaerts
32
1906-08
7
E3
Radial-stay
22” x 26”
Slide
Stephenson
8
1901-02
8
E3a
Belpaire
22” x 26”
Slide
Stephenson
114
1903-05
9
E3d
Belpaire
22” x 26”
Piston
Walschaerts
56
1906-10
10
E7s
Belpaire
22 ½” x 26”
Piston
Stephenson
90 conv. fr. E2a,b,c
1916-20

Questions and formulas:
Question: What was the cylinder size of this engine that was made with only 88 pieces?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,F1=88),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G10,F2:F10=88),3))
Level: medium
Question: What was the engine class that was built on 1906-08?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,G1="1906-08"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G10,G2:G10="1906-08"),1))
Level: medium
Question: How many engines were built with a cylinder size of 20 ½” x 26”, firebox is belpaire and valve gear is from Stephenson?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,(C1="20 ½” x 26”")*(B1="Belpaire")*(E1="Stephenson")),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G10,(C2:C10="20 ½” x 26”")*(B2:B10="Belpaire")*(E2:E10="Stephenson")),6))
Level: medium
Question: This engine with a cylinder size of 20 ½” x 26” and a firebox of radial-stay was built when?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,(C1="20 ½” x 26”")*(B1="Radial-stay")),7))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G10,(C2:C10="20 ½” x 26”")*(B2:B10="Radial-stay")),7))
Level: medium
Question: How many types of valves were used on this engine that was built on 1902-05?
Formula: ROWS(UNIQUE(FILTER(D1, G1="1902-05")))
Formula2: ROWS(UNIQUE(FILTER(D2:D10, G2:G10="1902-05")))
Level: medium