Table:
0
A
B
C
1
customer id
name
accounts
2
1
Brown
3
2
Wang
4
3
O'mahony
5
4
Weeks
6
5
Granger
7
6
Porter
8
7
Wesley

Questions and formulas:
Question: How many accounts are there in total?
Formula: ROWS(UNIQUE(C1))
Formula2: ROWS(UNIQUE(C2:C8))
Level: easy
Question: Count the number of accounts.
Formula: ROWS(UNIQUE(C1))
Formula2: ROWS(UNIQUE(C2:C8))
Level: easy
Question: List all customers’ names in the alphabetical order.
Formula: SORT(UNIQUE(HSTACK(A1,B1)), 2, 1)
Formula2: SORT(UNIQUE(HSTACK(A2:A8,B2:B8)), 2, 1)
Level: medium
Question: The number of accounts.
Formula: ROWS(UNIQUE(C1))
Formula2: ROWS(UNIQUE(C2:C8))
Level: easy
Question: How many accounts?
Formula: ROWS(UNIQUE(C1))
Formula2: ROWS(UNIQUE(C2:C8))
Level: easy
Question: The number of accounts.
Formula: ROWS(UNIQUE(C1))
Formula2: ROWS(UNIQUE(C2:C8))
Level: easy
Question: How many accounts?
Formula: ROWS(UNIQUE(C1))
Formula2: ROWS(UNIQUE(C2:C8))
Level: easy