Evaluación de conocimientos en matemáticas y física.
Quiz
•
Mathematics, Physics
•
1st - 12th Grade
•
Hard
Giovanny Orozco
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39 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Un conjunto es la reunión o agrupación de varios elementos con características comunes;
Dado el conjunto resolver:
Los elementos que corresponden al conjunto U son:
[0, 20, 40, 16]
[16, 40, 28, 60]
[0, 20, 6, 40, 28, 16]
[0, 20, 40, 16, 6, 28, 60,30]
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
El conjunto que resulta de la operación AUB corresponde a:
AUB = [0, 20, 40, 16, 6]
AUB= [0, 16, 40, 20, 28,60]
AUB = [0, 30, 20, 6, 40, 28, 16]
AUB = [0, 20, 40, 16 28, 60,30]
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si al doble de la edad de Carlos se le restan 18 años, se obtiene menos cuatro veces su edad. ¿Cuál de la expresión algebraica que representa de mejor manera el enunciado?
2x – 18 = 4
2x – 18 = –4
2x – 18 = 4 – x
2x – 18 = –4x
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Las magnitudes X y Y son directamente proporcionales cuando:
Al aumentar X, Y disminuye proporcionalmente
Al Aumentar Y, X disminuye proporcionalmente
Al aumentar X, Y aumenta proporcionalmente
Al sumar X y Y el resultado es menor que X
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En un salón de clase de 90 estudiantes, 27 de ellos aprobaron el año escolar. ¿Cuál es el porcentaje de aprobación?
30
29
38
34
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mario y Daniel se ganaron $ 450.000 en una rifa. Si para pagar la boleta, Mario aportó $15.000 y Daniel aportó $5.000. ¿Cuánto dinero le corresponde a cada uno?
Mario $300.000 y Daniel $ 150.000.
Mario $150.000 y Daniel $ 300.000.
Mario $112.500 y Daniel $ 337.500.
Mario $337.500 y Daniel $ 112.500.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En un teatro 10 entradas de adulto y 9 de niños cuestan $72.000.; 17 entradas de niños y 14 de adultos cuestan $ 114.000. Al plantear el sistema para solución correspondiente encontraremos que:
A
B
C
D
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