
Bibís Promedios II
Authored by Arturo CÓRDOVA
Mathematics
7th Grade
CCSS covered
Used 4+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 2 pts
Se vendieron 75 ejemplares de Líbero a 2 soles cada uno y 125 ejemplares de El comercio a 6 soles cada uno. ¿Cuál es el precio promedio de los diarios vendidos?
3
3,5
4
4,5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se vendieron 30 ejemplares de Correo a 1 soles cada uno y 70 ejemplares de La República a 3 soles cada uno. ¿Cuál es el precio promedio de los diarios vendidos?
2
2,4
2,8
3,2
3.
MULTIPLE CHOICE QUESTION
3 mins • 2 pts
Si a un grupo de 6 números se le agrega 10; 15 y 11 su promedio aritmético disminuye en 1, ¿Cuál será el promedio aritmético de este nuevo grupo de números?
14
15
16
17
Tags
CCSS.6.SP.B.5C
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si a un grupo de 5 números se le agrega 10 y 17 su promedio aritmético aumenta en 1, ¿Cuál es el promedio aritmético del grupo de números iniciales?
10
11
12
13
5.
MULTIPLE CHOICE QUESTION
3 mins • 2 pts
Las edades de tres hermanos son proporcionales a los números 4; 5 y 9 y su promedio es 24. Hallar la edad del mayor.
18
27
36
45
6.
MULTIPLE CHOICE QUESTION
3 mins • 2 pts
Las edades de tres hermanos son proporcionales a los números 2; 4; 5 y 7 y su promedio es 9. Hallar la edad del menor.
4
6
8
10
7.
MULTIPLE CHOICE QUESTION
3 mins • 2 pts
Si el promedio de 30 números es 24 y agregamos 20 números cuyo promedio es 19. ¿Cuál es el promedio final?
20
21
22
23
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