Table:
0
A
B
C
D
E
F
1
Class to 1928
Class from 1928
Seats
Quantity
Year(s) of Manufacture
Remarks
2
Bi-21
Bi-21
40
10
1921/23
Trial coaches
3
BCi-21
BCi-21
16/34
10
1921/23
Trial coaches
4
BDi-21
BCid-21
16/39
10
1923
Trial coaches
5
Ci-21
Ci-21
58
10
1923
Trial coaches
6
Di-21b
Cid-21b
66
50
1922
Trial coaches

Questions and formulas:
Question: What is the average quantity for coaches manufactured in 1921/23, and had 40 seats?
Formula: AVERAGE(FILTER(D1, (E1="1921/23")*(C1=40)))
Formula2: AVERAGE(FILTER(D2:D6, (E2:E6="1921/23")*(C2:C6=40)))
Level: easy
Question: Which class to 1928 value had years of manufacture of 1921/23 and class from 1928 of BCi-21?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,(E1="1921/23")*(B1="bci-21")),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F6,(E2:E6="1921/23")*(B2:B6="bci-21")),1))
Level: medium
Question: What is the smallest quantity having a Class to 1928 of BDi-21?
Formula: MINIFS(D1,A1,"bdi-21")
Formula2: MINIFS(D2:D6,A2:A6,"bdi-21")
Level: easy
Question: Which class from 1928 had a class to 1928 of BDi-21?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,A1="bdi-21"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F6,A2:A6="bdi-21"),2))
Level: medium
Question: What were the remarks for the coach having a class from 1928 of Cid-21B?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,B1="cid-21b"),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F6,B2:B6="cid-21b"),6))
Level: medium