Table:
0
A
B
C
D
E
1
Episode No.
Airdate
Total Viewers
Share
BBC One Weekly Ranking
2
1
2 September 2011
6,114,000
24.2%
9
3
2
9 September 2011
5,370,000
20.2%
14
4
3
16 September 2011
5,450,000
21.7%
11
5
4
23 September 2011
5,210,000
19.5%
10
6
5
29 September 2011
5,020,000
18.8%
16
7
6
7 October 2011
4,780,000
16.9%
17

Questions and formulas:
Question: What date did the episode with a weekly ranking of 14 air?
Formula: LET(query1,SUMMARIZE(B1,SUMX(E1)),FILTER(query1,CHOOSECOLS(query1,2)=14))
Formula2: LET(query1,SUMMARIZE(B2:B7,SUMX(E2:E7)),FILTER(query1,CHOOSECOLS(query1,2)=14))
Level: hard
Question: What is the total number of total viewers with a share of 18.8% and a weekly ranking under 16?
Formula: SUM(FILTER(C1, (D1="18.8%")*(E1<16)))
Formula2: SUM(FILTER(C2:C7, (D2:D7="18.8%")*(E2:E7<16)))
Level: easy