Table:
0
A
B
C
D
E
1
District
Incumbent
Party
First elected
Result
2
South Carolina 1
Samuel Dibble
Democratic
1882
Re-elected
3
South Carolina 2
George D. Tillman
Democratic
1878
Re-elected
4
South Carolina 3
James S. Cothran
Democratic
1886
Re-elected
5
South Carolina 4
William H. Perry
Democratic
1884
Re-elected
6
South Carolina 5
John J. Hemphill
Democratic
1882
Re-elected
7
South Carolina 6
George W. Dargan
Democratic
1882
Re-elected
8
South Carolina 7
William Elliott
Democratic
1884
Re-elected

Questions and formulas:
Question: Which First elected has a District of south carolina 2?
Formula: SUMIFS(D1,A1,"south carolina 2")
Formula2: SUMIFS(D2:D8,A2:A8,"south carolina 2")
Level: easy
Question: Which Incumbent has a First elected larger than 1884?
Formula: LET(query1,SUMMARIZE(B1,SUMX(D1)),FILTER(query1,CHOOSECOLS(query1,2)>1884))
Formula2: LET(query1,SUMMARIZE(B2:B8,SUMX(D2:D8)),FILTER(query1,CHOOSECOLS(query1,2)>1884))
Level: hard