Table:
0
A
B
C
D
E
1
Carrier
Standard
Frequency
Connection speed
Launch date (dd.mm.yyyy)
2
Orange
GSM GPRS
900MHz and 1800MHz
56 kbit/s
14.09.2005
3
Orange
GSM EDGE
900MHz and 1800MHz
236.8 kbit/s
17.04.2006
4
Moldcell
GSM GPRS
900MHz and 1800MHz
56 kbit/s
31.01.2005
5
Moldcell
GSM EDGE
900MHz and 1800MHz
236.8 kbit/s
07.06.2005
6
Unité
CDMA 1x
450MHz
153 kbit/s
01.03.2007
7
IDC
CDMA 1x
800MHz
153 kbit/s
09.09.1999

Questions and formulas:
Question: What was the connection speed when launched on 07.06.2005?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,E1="07.06.2005"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,E2:E7="07.06.2005"),4))
Level: medium
Question: When the carrier is idc, what are the frequencies?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="IDC"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,A2:A7="IDC"),3))
Level: medium
Question: When the launch date is 14.09.2005, and the frequency is 900mhz and 1800mhz, how many carriers are there?
Formula: ROWS(UNIQUE(FILTER(A1, (C1="900MHz and 1800MHz")*(E1="14.09.2005"))))
Formula2: ROWS(UNIQUE(FILTER(A2:A7, (C2:C7="900MHz and 1800MHz")*(E2:E7="14.09.2005"))))
Level: medium
Question: How many standards are there, when the launch date was 17.04.2006?
Formula: ROWS(UNIQUE(FILTER(B1, E1="17.04.2006")))
Formula2: ROWS(UNIQUE(FILTER(B2:B7, E2:E7="17.04.2006")))
Level: medium