Table:
0
A
B
C
D
E
F
1
Rank by average
Competition finish
Couple
Total
Number of dances
Average
2
1
1
Jill & Darren
371
11
33.7
3
2
2
Denise & Ian
359
11
32.6
4
3
4
Aled & Lilia
256
9
28.4
5
4
6
Sarah & Brendan
140
5
28.0
6
5
3
Julian & Erin
269
11
24.5
7
6
5
Roger & Camilla
165
7
23.6
8
7
9
Carol & Paul
42
2
21.0
9
8
8
Esther & Anton
56
3
18.7
10
9
7
Diarmuid & Nicole
55
4
13.8

Questions and formulas:
Question: What couple averaged 21.0?
Formula: LET(query1,SUMMARIZE(C1,SUMX(F1)),FILTER(query1,CHOOSECOLS(query1,2)=21))
Formula2: LET(query1,SUMMARIZE(C2:C10,SUMX(F2:F10)),FILTER(query1,CHOOSECOLS(query1,2)=21))
Level: hard
Question: What was the number of dances for the competition finish of 3?
Formula: SUM(FILTER(E1, B1=3))
Formula2: SUM(FILTER(E2:E10, B2:B10=3))
Level: easy