
CUESTIONARIO PROMEDIOS - 4TO SEC
Authored by Jhonatan Miñano
Mathematics
1st - 12th Grade
Used 24+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
En un aula se sabe que el promedio de edades de 10 alumnos es 15 años y el promedio de las edades de otros 20 alumnos es 18 años. Halle la edad promedio de los 30 estudiantes.
15
16
17
18
19
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
La edad promedio de 30 personas es 20 años y ninguno es menor a 18 años. ¿Cuál es la máxima edad que puede tener uno de ellos?
64
68
72
78
84
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
El promedio aritmético de 20 números es 75, si al primero se le añade 2 unidades, al segundo 4 unidades, al tercero 6 unidades; y así sucesivamente . ¿Cuál es el nuevo promedio aritmético?
80
85
88
94
96
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
La MA y MH de dos números enteros se encuentran en la relación de 25 a 16. Halle la diferencia de los números si la suma de ellos es 340.
204
224
252
256
289
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Una pista tiene la forma de un triangulo equilátero. Un auto recorre sus tres lados con velocidades de 90km/h, 120km/h y 180km/h. Hallar la velocidad promedio del auto.
120
125,5
130
145
150
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