Table:
0
A
B
C
D
E
1
Rank
Name and flag
Water area (km 2 )
Water area as percentage of total area
Percentage of national freshwater area
2
1
Quebec
176,928
11.5%
19.9%
3
2
Northwest Territories
163,021
12.1%
18.3%
4
3
Ontario
158,654
14.7%
17.8%
5
4
Nunavut
157,077
7.5%
17.6%
6
5
Manitoba
94,241
14.5%
10.6%
7
6
Saskatchewan
59,366
9.1%
6.7%
8
7
Newfoundland and Labrador
31,340
7.7%
3.5%
9
8
British Columbia
19,549
2.1%
2.2%
10
9
Alberta
19,531
3.0%
2.2%
11
10
Yukon
8,052
1.7%
0.9%
12
11
Nova Scotia
1,946
3.5%
0.2%
13
12
New Brunswick
1,458
2.0%
0.2%
14
13
Prince Edward Island
0
0.0%
0.0%
15
Total
Canada
891,163
8.9%
100.0%

Questions and formulas:
Question: Which province and flag which has a water area (km 2) smaller than 176,928 has a total water area percentage of 0.0%?
Formula: LET(query1,LET(query1,FILTER(A1:E1,D1="0.0%"),SUMMARIZE(CHOOSECOLS(query1,2),SUMX(CHOOSECOLS(query1,3)))),FILTER(query1,CHOOSECOLS(query1,2)<176928))
Formula2: LET(query1,LET(query1,FILTER(A2:E15,D2:D15="0.0%"),SUMMARIZE(CHOOSECOLS(query1,2),SUMX(CHOOSECOLS(query1,3)))),FILTER(query1,CHOOSECOLS(query1,2)<176928))
Level: hard
Question: Which province and flag has a water area (km 2) of 0?
Formula: LET(query1,SUMMARIZE(B1,SUMX(C1)),FILTER(query1,CHOOSECOLS(query1,2)=0))
Formula2: LET(query1,SUMMARIZE(B2:B15,SUMX(C2:C15)),FILTER(query1,CHOOSECOLS(query1,2)=0))
Level: hard