Table:
0
A
B
C
D
E
F
G
1
Period
Internet Explorer
Firefox
Chrome
Safari
Opera
Other
2
2013 Q1
55.58%
20.09%
16.76%
5.32%
1.77%
0.48%
3
2012 Q4
54.56%
20.07%
17.95%
5.26%
1.67%
0.49%
4
2012 Q3
53.52%
19.87%
19.44%
5.07%
1.57%
0.53%
5
2012 Q2
54.05%
19.98%
19.18%
4.71%
1.60%
0.48%
6
2012 Q1
53.16%
20.80%
18.83%
5.03%
1.67%
0.51%
7
2011 Q4
52.32%
22.10%
18.43%
5.09%
1.60%
0.46%
8
2011 Q3
55.29%
22.63%
15.28%
4.74%
1.69%
0.37%

Questions and formulas:
Question: What internet explorer has 1.67% as the opera, with 2012 q1 as the period?
Formula: FILTER(B1,(F1="1.67%")*(A1="2012 q1"))
Formula2: FILTER(B2:B8,(F2:F8="1.67%")*(A2:A8="2012 q1"))
Level: easy
Question: What safari has 2012 q4 as the period?
Formula: FILTER(E1,A1="2012 q4")
Formula2: FILTER(E2:E8,A2:A8="2012 q4")
Level: easy
Question: What period has 53.52% as the internet explorer?
Formula: FILTER(A1,B1="53.52%")
Formula2: FILTER(A2:A8,B2:B8="53.52%")
Level: easy
Question: What is the other that has 20.80% as the firefox?
Formula: FILTER(G1,C1="20.80%")
Formula2: FILTER(G2:G8,C2:C8="20.80%")
Level: easy
Question: What opera has 19.87% as the firefox?
Formula: FILTER(F1,C1="19.87%")
Formula2: FILTER(F2:F8,C2:C8="19.87%")
Level: easy