
LECCION: Promedios (Raz. Matematico)
Authored by DylanAngel CatañoVilca
Mathematics
12th Grade
Used 4+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
El promedio de las edades en un salón de clases es de 18. Si el promedio de 20 de ellos es 15.
Hallar el promedio
de los restantes sabiendo que hay 50 alumnos.
25
20
10
32
35
2.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
4
3
5
3.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
El promedio de 2 números es 10 y de
otros 3 números es 15. Calcule el
promedio de los 5 números.
10
12
13
11
15
4.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
Para dos números a y b se cumple:
MA x MH + 2MG = 440
Halle la MG de a y b.
10
13
20
15
14
5.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
Un móvil parte de un punto A a un
punto B con una velocidad de 10 km/h
y regresa con una velocidad de 15
km/h. Calcule la velocidad promedio
en todo el recorrido (en km/h)
10
12
13
11
15
6.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
Calcule la velocidad promedio al
recorrer una cierta distancia dividida
en dos tramos recorridos con 48 km/h
y 60 km/h durante el mismo tiempo en
cada tramo.
18
54
40
25
35
7.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
En un aula de la academia “Carpe
Diem” si a cada hombre se le aumenta
7 puntos y a cada mujer se le
disminuye 6 puntos, el promedio de
sus notas no varía. Calcule el
promedio de las notas del aula si los
hombres y mujeres tienen un promedio
de 14 y 15 respectivamente.
14,34
14,54
14,50
14,44
14
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