Table:
0
A
B
C
D
E
1
Lot No.
Diagram
Built
Builder
Fleet numbers
2
30485
97
1957–1958
York
1801–1812
3
30507
98
1960
Wolverton
1838–1852
4
30520
99
1960
Wolverton
1813–1837
5
30670
99
1961–1962
Wolverton
1853–1864
6
30702
99
1962
Wolverton
1865–1882

Questions and formulas:
Question: What is the total diagram for builder york?
Formula: SUMIFS(B1,D1,"york")
Formula2: SUMIFS(B2:B6,D2:D6,"york")
Level: easy
Question: What fleet  numbers have a diagram less than 99 and built in 1960?
Formula: LET(query1,LET(query1,FILTER(A1:E1,C1=1960),SUMMARIZE(CHOOSECOLS(query1,5),SUMX(CHOOSECOLS(query1,2)))),FILTER(query1,CHOOSECOLS(query1,2)<99))
Formula2: LET(query1,LET(query1,FILTER(A2:E6,C2:C6=1960),SUMMARIZE(CHOOSECOLS(query1,5),SUMX(CHOOSECOLS(query1,2)))),FILTER(query1,CHOOSECOLS(query1,2)<99))
Level: hard
Question: What diagram built in 1962 has a lot number smaller than 30702?
Formula: SUM(FILTER(B1, (C1=1962)*(A1<30702)))
Formula2: SUM(FILTER(B2:B6, (C2:C6=1962)*(A2:A6<30702)))
Level: easy
Question: What builder has lot number 30702?
Formula: LET(query1,SUMMARIZE(D1,SUMX(A1)),FILTER(query1,CHOOSECOLS(query1,2)=30702))
Formula2: LET(query1,SUMMARIZE(D2:D6,SUMX(A2:A6)),FILTER(query1,CHOOSECOLS(query1,2)=30702))
Level: hard