Table:
0
A
B
C
D
E
1
Size
Density
Tracks
Coercivity
Unformatted capacity per side
2
3½in
single
40
600Oe
250KB
3
3½in
double
80
600Oe (300Oe)
500KB
4
3½in
high
80
750Oe (600Oe)
1000KB
5
3½in
extended
80
900Oe
2000KB
6
5¼in
single/double
40
300Oe
250KB
7
5¼in
quad
80
300Oe
500KB
8
5¼in
high
80
600Oe
750KB
9
8in
single/double
77
300Oe
1000 KB

Questions and formulas:
Question: How many tracks have an unformatted capacity per side of 2000kb?
Formula: SUMIFS(C1,E1,"2000kb")
Formula2: SUMIFS(C2:C9,E2:E9,"2000kb")
Level: easy
Question: What is the unformatted capacity per side if the size is 8in?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="8in"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E9,A2:A9="8in"),5))
Level: medium
Question: How many tracks have a single density?
Formula: SUMIFS(C1,B1,"single")
Formula2: SUMIFS(C2:C9,B2:B9,"single")
Level: easy