Table:
0
A
B
C
D
E
F
G
1
Rank
City
1890 census
1910 census
1920 census
1930 census
1940 census
2
1
Keijō
1,165,000
230000
247000
350000
1100000
3
2
Fuzan
NA
81000
74000
130000
400000
4
3
Heijō
NA
40000
60000
137000
286000
5
4
Jinsen
NA
30000
40000
54000
171000
6
5
Taihoku
78,000
95000
164000
249000
326000
7
6
Tainan
NA
44000
112000
166000
296000

Questions and formulas:
Question: For cities with a census of 74000 in 1920, what was their census in 1890?
Formula: LET(query1,SUMMARIZE(C1,SUMX(E1)),FILTER(query1,CHOOSECOLS(query1,2)=74000))
Formula2: LET(query1,SUMMARIZE(C2:C7,SUMX(E2:E7)),FILTER(query1,CHOOSECOLS(query1,2)=74000))
Level: hard
Question: For cities with a census of 296000 in 1940, what was their census in 1920?
Formula: SUM(FILTER(E1, G1=296000))
Formula2: SUM(FILTER(E2:E7, G2:G7=296000))
Level: easy
Question: How many cities had a census of 400000 in 1940?
Formula: SUM(FILTER(A1, G1=400000))
Formula2: SUM(FILTER(A2:A7, G2:G7=400000))
Level: easy