Table:
0
A
B
C
D
E
F
G
1
Graphics mode
Char cells
Pixels
Hardware colours
used (KB)
map
Type
2
0
80 × 32
640 × 256
2
20
3000–7FFF
Graphics
3
1
40 × 32
320 × 256
4
20
3000–7FFF
Graphics
4
2
20 × 32
160 × 256
8
20
3000–7FFF
Graphics
5
3
80 × 25
640 × 200
2
16
4000–7FFF
Text
6
4
40 × 32
320 × 256
2
10
5800–7FFF
Graphics
7
5
20 × 32
160 × 256
4
10
5800–7FFF
Graphics
8
6
40 × 25
320 × 200
2
8
6000–7FFF
Text

Questions and formulas:
Question: How many pixels would be found in a hardware colour of 8?
Formula: LET(query1,SUMMARIZE(C1,SUMX(D1)),FILTER(query1,CHOOSECOLS(query1,2)=8))
Formula2: LET(query1,SUMMARIZE(C2:C8,SUMX(D2:D8)),FILTER(query1,CHOOSECOLS(query1,2)=8))
Level: hard
Question: If hardware colours is 8 what would the char cells be?
Formula: LET(query1,SUMMARIZE(B1,SUMX(D1)),FILTER(query1,CHOOSECOLS(query1,2)=8))
Formula2: LET(query1,SUMMARIZE(B2:B8,SUMX(D2:D8)),FILTER(query1,CHOOSECOLS(query1,2)=8))
Level: hard