Table:
0
A
B
C
D
E
1
people id
name
age
height
hometown
2
1
Paul Hamm
24
1.71
Santo Domingo
3
2
Lorraine Súarez Carmona
21
1.75
Bonao
4
3
Ashley Pérez Cabrera
19
1.7
Miami
5
4
Elizabeth Quiñónez Aroyo
20
1.71
Santo Domingo
6
5
Eve Tatiana Cruz Oviedo
19
1.72
Santo Domingo
7
6
Nadia Caba Rodríguez
22
1.79
Santo Domingo
8
7
Clary Sermina Delgado Cid
21
1.75
Santiago de los Caballeros
9
8
Marina Castro Medina
20
1.76
Santo Domingo
10
9
Rosa Clarissa Ortíz Melo
23
1.81
La Romana
11
10
Endis de los Santos Álvarez
24
1.72
Los Alcarrizos

Questions and formulas:
Question: What are the names of people in ascending alphabetical order?
Formula: SORTBY(B1,B1,1)
Formula2: SORTBY(B2:B11,B2:B11,1)
Level: easy
Question: Return the names of people, ordered alphabetically.
Formula: SORTBY(B1,B1,1)
Formula2: SORTBY(B2:B11,B2:B11,1)
Level: easy
Question: What is the age of the tallest person?
Formula: LET(a,SORTBY(C1,D1,-1),FILTER(a,SEQUENCE(ROWS(a))<=1))
Formula2: LET(a,SORTBY(C2:C11,D2:D11,-1),FILTER(a,SEQUENCE(ROWS(a))<=1))
Level: hard
Question: Return the age of the person with the greatest height.
Formula: LET(a,SORTBY(C1,D1,-1),FILTER(a,SEQUENCE(ROWS(a))<=1))
Formula2: LET(a,SORTBY(C2:C11,D2:D11,-1),FILTER(a,SEQUENCE(ROWS(a))<=1))
Level: hard
Question: How many distinct hometowns did these people have?
Formula: ROWS(UNIQUE(E1))
Formula2: ROWS(UNIQUE(E2:E11))
Level: easy
Question: Count the number of different hometowns of these people.
Formula: ROWS(UNIQUE(E1))
Formula2: ROWS(UNIQUE(E2:E11))
Level: easy
Question: all people names by their ids in numerical order
Formula: SORT(UNIQUE(HSTACK(B1,A1)), 2, 1)
Formula2: SORT(UNIQUE(HSTACK(B2:B11,A2:A11)), 2, 1)
Level: medium
Question: people's names by numerical order of ID
Formula: SORT(UNIQUE(HSTACK(B1,A1)), 2, 1)
Formula2: SORT(UNIQUE(HSTACK(B2:B11,A2:A11)), 2, 1)
Level: medium
Question: quantity of hometowns and people respectively
Formula: HSTACK(ROWS(UNIQUE(E1)), SUM(A1))
Formula2: HSTACK(ROWS(UNIQUE(E2:E11)), SUM(A2:A11))
Level: hard
Question: the ids of people in numerical order and their names
Formula: SORT(UNIQUE(HSTACK(B1,A1)), 2, 1)
Formula2: SORT(UNIQUE(HSTACK(B2:B11,A2:A11)), 2, 1)
Level: medium
Question: The ids of people in numerical order and their names.
Formula: SORT(UNIQUE(HSTACK(B1,A1)), 2, 1)
Formula2: SORT(UNIQUE(HSTACK(B2:B11,A2:A11)), 2, 1)
Level: medium
Question: the respective number of hometowns and people
Formula: HSTACK(ROWS(UNIQUE(E1)), SUM(A1))
Formula2: HSTACK(ROWS(UNIQUE(E2:E11)), SUM(A2:A11))
Level: hard