How do you achieve resolving the duplicate number problem
in Lookup. Such as:
Freq Number
40 29
38 43
37 7
36 20
36 20 <---- should be 58
35 13


such as 36 and 20 in the above. There are two freq with number 36.
How do you get VLookup to go past the first number 20, to the
second number Freq (36), which in this case should be number 58.

Any help would be appreciated.