Table:
0
A
B
C
D
E
F
1
Year
Universities
No. of Students Signed up
% electricity reduction
Tonnes of CO2 Saved
£ Saved
2
2006-07
1
130
10%
90
£19,000
3
2007-08
7
2800
8.9%
550
£100,000+
4
2008-09
11
4980
9.3%
1295
£218,000
5
2009-10
33
12052
6.9%
2100
£337,000
6
2010-11
37
15351
6.9%
1522
£232,000*

Questions and formulas:
Question: When 8.9% is the electricity reduction percentage how many sets of tonnes of co2 saved is there?
Formula: SUMIFS(E1,D1,"8.9%")
Formula2: SUMIFS(E2:E6,D2:D6,"8.9%")
Level: easy
Question: When 1522 is the tonnes of co2 saved what is the year?
Formula: LET(query1,SUMMARIZE(A1,SUMX(E1)),FILTER(query1,CHOOSECOLS(query1,2)=1522))
Formula2: LET(query1,SUMMARIZE(A2:A6,SUMX(E2:E6)),FILTER(query1,CHOOSECOLS(query1,2)=1522))
Level: hard
Question: When £337,000 is £ saved what is the percentage of electricity reduction?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,F1="£337,000"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F6,F2:F6="£337,000"),4))
Level: medium
Question: When 8.9% is the electricity reduction percentage what is the £ saved?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,D1="8.9%"),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F6,D2:D6="8.9%"),6))
Level: medium
Question: When 10% is the percentage of electricity reduction how many sets of universities are there?
Formula: SUMIFS(B1,D1,"10%")
Formula2: SUMIFS(B2:B6,D2:D6,"10%")
Level: easy