Table:
0
A
B
C
D
E
1
Builder
Works no.
Built
Wheels
Notes
2
AB
219
1880
0-4-0 ST
Sold 1885
3
AB
221
1880
0-6-0 ST
Sold 1908
4
FW
279
1885
0-6-0ST
Withdrawn before 1948
5
AB
199
1879
0-4-0ST
To LMMR 1887 Boiler exploded 1889
6
P
464
1888
0-6-0ST
To Great Mountain Colliery 1913
7
P
475
1889
0-6-0ST
Sold 1896
8
BH
884
1889
0-4-0ST
Sold by 1913
9
AE
1448
1902
0-6-0T
Withdrawn before 1948
10
AB
1111
1907
0-6-0T
Withdrawn before 1948
11
AB
1157
1908
0-6-0ST
Sold 1919
12
HC
930
1911
0-6-0T
To British Railways 1948 Withdrawn 1951
13
HC
912
1911
0-6-0ST
To Great Mountain Colliery c. 1919
14
HC
977
1912
0-6-0T
Withdrawn 1923
15
HC
1032
1913
0-6-0T
Withdrawn before 1948
16
HC
1214
1917
0-6-0ST
To British Railways 1948 Withdrawn 1954
17
MW
1982
1920
0-6-0T
Withdrawn before 1948

Questions and formulas:
Question: Which wheels were built 1920?
Formula: LET(query1,SUMMARIZE(D1,SUMX(C1)),FILTER(query1,CHOOSECOLS(query1,2)=1920))
Formula2: LET(query1,SUMMARIZE(D2:D17,SUMX(C2:C17)),FILTER(query1,CHOOSECOLS(query1,2)=1920))
Level: hard
Question: Which builder has a Built smaller than 1880?
Formula: LET(query1,SUMMARIZE(A1,SUMX(C1)),FILTER(query1,CHOOSECOLS(query1,2)<1880))
Formula2: LET(query1,SUMMARIZE(A2:A17,SUMX(C2:C17)),FILTER(query1,CHOOSECOLS(query1,2)<1880))
Level: hard