Table:
0
A
B
C
D
E
1
NIR Number
Introduced
BR Number(s)
Built
Type
2
911 / 8911
1981
14104
1969 Derby
Generator Van (ex- Mark 2B BFK)
3
8941
2001
6089 / 72634
1974 Derby
TSO (ex-BR Class 488 unit 488318)
4
8942
2001
6098 / 72637
1974 Derby
TSO (ex-BR Class 488 unit 488318)
5
8943
2001
6082 / 72605
1974 Derby
TSO (ex-BR Class 488 unit 488305)
6
8944
2001
6080 / 72609
1974 Derby
TSO (ex-BR Class 488 unit 488305)
7
8945
2001
6017 / 72626
1974 Derby
TSO (ex-BR Class 488 unit 488314)
8
8946
2001
5974 / 72627
1974 Derby
TSO (ex-BR Class 488 unit 488314)
9
8947
2001
6078 / 72646
1974 Derby
TSO (ex-BR Class 488 unit 488319)
10
8948
2001
6081 / 72647
1974 Derby
TSO (ex-BR Class 488 unit 488319)
11
8918
(2009)
9534 / 9712
1974 Derby Rebuilt 1985 Glasgow
DBSO (ex- Mark 2F BSO)

Questions and formulas:
Question: Which NIR number is for the tso (ex-br class 488 unit 488305) type that has a 6082 / 72605 BR number?
Formula: FILTER(A1,(E1="tso (ex-br class 488 unit 488305)")*(C1="6082 / 72605"))
Formula2: FILTER(A2:A11,(E2:E11="tso (ex-br class 488 unit 488305)")*(C2:C11="6082 / 72605"))
Level: easy