Table:
0
A
B
C
D
E
F
1
Ship
15-inch
13.5-inch/1400lb
13.5-inch/1250lb
12-inch
Total
2
Lützow
0
0
4
0
4
3
Derfflinger
0
0
0
0
0
4
Seydlitz
1
4
0
0
5
5
Moltke
4
4
0
0
8
6
Von der Tann
1
2
0
0
3
7
Total
6
7
4
0
17

Questions and formulas:
Question: What is the total number of 13.5 inch/1400 lb that has a 0 13.5 inch/1250 lb; 3 for a total and a 15 inch less than 1?
Formula: SUM(FILTER(C1, (D1=0)*(F1=3)*(B1<1)))
Formula2: SUM(FILTER(C2:C7, (D2:D7=0)*(F2:F7=3)*(B2:B7<1)))
Level: easy